Sounds

This is a sub-page of Half-Life (Windows).

Half-Life contains a multitude of unused sounds, character voice lines and vocabulary words used for "speaking" entities such as the HEV suit and announcement system. The file "sound/sentences.txt" contains a list of sentences allowing the game to easily call a sound, or string of sounds, for these purposes. This page includes both unused sentences and unused sound files without an associated sentence.

HEV#

Many voice files for the HEV suit go unused. Apparently it was planned for the suit to have been much more narrative and Navi-like.

HEV Bootup Sequence#

A series of sentences exist for what became the final HEV logon sequence. These store each part of the sequence in an individual sentence, where the final game stores them in a single sentence HEV_AAx. Of note is the different order of events compared to the final, the additional sound effects with each step, and the player starting the game with full HEV battery.

Name	Sentence	Transcript
HEV_A1	fvox/blip blip(p130) powermove_on	[Two blips] Power assist movement activated.
HEV_A2	fvox/blip blip powerarmor_on	[Two blips] High-impact reactive armor activated.
HEV_A3	fvox/blip blip(p130) atmospherics_on	[Two blips] Atmospheric contaminant sensors activated.
HEV_A4	fvox/blip blip vitalsigns_on boop, boop, boop	[Two blips] Vital sign monitoring activated. [Three pulses]
HEV_A5	fvox/blip blip(p130) munitionview_on	[Two blips] Munition level monitoring activated.
HEV_A6	fvox/blip blip communications_on	[Two blips] Communications interface online.
HEV_A7	fvox/blip blip(p70) weaponselect_on	[Two blips] Defensive weapon selection system activated.
HEV_A8	fvox/blip blip(p70) automedic_on	[Two blips] Automatic medical systems engaged.
HEV_A9	fvox/fuzz power_level_is onehundred percent	[Fuzz] Power level is one hundred percent.
HEV_A10	fvox/safe_day, bell	Have a very safe day. [Bell]

The first part of this sequence, HEV_A0, is used in the Hazard Course version of the suit item for brevity. Additionally, HEV_A1 is used for obtaining the long jump module, which could imply it was originally a part of the suit itself.

Medical Systems#

A variety of diagnosis and healing lines, including lines for the unused antidote item and details on player blood loss and medical recovery.

Name	Sentence / Filename	Transcript
HEV_MED0	fvox/(p140) boop, boop, boop, (p100) innsufficient_medical [sic]	[Three pulses] Insufficient medical supplies to repair damage.*
HEV_MED2	fvox/(p140) boop, boop, boop, (p100) administering_medical	[Three pulses] Administering medical attention.
HEV_HEAL0	fvox/(p140) boop, boop, boop, (p100) wound_sterilized, blip(p130 v50), blip(p130 v40), hiss, morphine_shot	[Three pulses] Wound sterilized. [Two blips, hiss] Morphine administered.
HEV_HEAL1	fvox/(p140) boop, boop, boop, (p100) torniquette_applied, bleeding_stopped	[Three pulses] Local tourniquet applied. Bleeding has stopped.
HEV_HEAL2	fvox/(p140) boop, boop, boop, (p100) bleeding_stopped	[Three pulses] Bleeding has stopped.
HEV_HEAL3	fvox/(p140) boop, boop, boop, (p100) blood_plasma	[Three pulses] Blood plasma administered.
HEV_HEAL4	fvox/(p140) boop, boop, boop, (p100) hiss, antitoxin_shot	[Three pulses, hiss] Antitoxin administered.
HEV_HEAL5	fvox/(p140) boop, boop, boop, (p100) hiss, antidote_shot	[Three pulses, hiss] Antidote administered.
HEV_HEAL6	fvox/(p140) boop, boop, boop, (p100) hiss, wound_sterilized	[Three pulses, hiss] Wound sterilized.
HEV_HEAL8	fvox/(p140) boop, boop, boop, (p100) medical_repaired	[Three pulses] Medical damage repaired.
N/A	fvox/adrenaline_shot	Adrenaline administered.
N/A	fvox/pain_block	Pain suppressant administered.

Due to a typo in HEV_MED0 (calling for "innsufficient_medical" instead of "innsuficient_medical"), the sentence does not properly play if added to a custom map.

Vital Sign Monitoring#

Unused "getting hurt" lines, including specific electrical and heat damage lines.

Name	Sentence	Transcript
HEV_HLTH0	fvox/(p120) beep, beep, (p100) health_dropping	[Two beeps] Warning: Vital signs dropping.
HEV_HLTH4	fvox/(p140) beep, beep, (p100) health_dropping2, evacuate_area	[Two beeps] Warning: Vital signs are dropping. Evacuate area.
HEV_HLTH5	fvox/(p140) beep, beep, beep, (p100) health_critical, evacuate_area	[Three beeps] Warning: Vital signs critical. Evacuate area.
HEV_HLTH6	fvox/(p140) beep, beep, beep, (p100) near_death, evacuate_area immediately	[Three beeps] Emergency: User death imminent. Evacuate area immediately.
HEV_SHOCK	fvox/(p120) beep, beep, (p100) warning, shock_damage	[Two beeps] Warning: Electrical damage detected.
HEV_FIRE	fvox/(p120) beep, beep, (p100) warning, heat_damage	[Two beeps] Warning: Extreme heat damage detected.

Munitions and Weapons Monitoring#

A series of unused HEV lines to be used for every new weapon acquired, along with (rather irkingly) all ammunition pickups. Of note is that the Magnum is referred to as a .44 caliber in contrast to the final game's .357. Also, the ammo used by the Gluon Gun is referred to as an "energy recharge unit," while in the final game it's replenished with boxes of depleted uranium also used by the Tau Cannon, which it shares the ammo pool with. There is no ammo pickup name associated with the Tau Cannon here, meaning it likely also used the EGONPOWER ammo.

Name	Sentence / Filename	Transcript
HEV_AIM_ON	fvox/blip targetting_system activated	[Blip] Automatic target acquisition system activated.
HEV_AIM_OFF	fvox/blip targetting_system deactivated	[Blip] Automatic target acquisition system deactivated.
HEV_BATTERY	fvox/blip get_battery acquired	[Blip] HEV power unit acquired.
HEV_MEDKIT	fvox/blip get_medkit(v80)	[Blip] Automatic medical kit
HEV_PISTOL	fvox/blip get_pistol acquired	[Blip] 9-millimeter semi-automatic handgun acquired.
HEV_SHOTGUN	fvox/blip get_shotgun	[Blip] Combat shotgun acquired.
HEV_GRENADE	fvox/blip get_grenade acquired	[Blip] Fragmentation grenade acquired.
HEV_ASSAULT	fvox/blip get_assault acquired	[Blip] 9-millimeter fully-automatic weapon with grenade launcher acquired.
HEV_44PISTOL	fvox/blip get_44pistol acquired	[Blip] .44 caliber handgun acquired.
HEV_RPG	fvox/blip get_rpg acquired	[Blip] Laser-guided rocket launcher acquired.
HEV_SATCHEL	fvox/blip get_satchel acquired	[Blip] Remote-activated demolition unit acquired.
HEV_TRIPMINE	fvox/blip get_tripmine acquired	[Blip] Laser-activated anti-personnel mine acquired.
HEV_HORNET	fvox/blip get_alien_wpn	[Blip] Unidentified bioweapon
HEV_SQUEEK	fvox/blip get_alien_wpn	[Blip] Unidentified bioweapon
HEV_EGON	fvox/blip get_egon acquired	[Blip] Experimental energy weapon acquired.
HEV_GAUSS	fvox/blip get_gauss acquired	[Blip] Experimental hypervelocity projectile weapon acquired.
HEV_XBOW	fvox/blip get_crossbow acquired	[Blip] High-velocity stealth crossbow acquired.
HEV_9MM	fvox/blip get_9mmclip acquired	[Blip] 9mm ammunition acquired.
HEV_44AMMO	fvox/blip get_44ammo acquired	[Blip] .44 caliber ammunition acquired.
HEV_BUCKSHOT	fvox/blip get_buckshot acquired	[Blip] Combat shotgun ammunition acquired.
HEV_BOLTS	fvox/blip get_bolts acquired	[Blip] Neurotoxin-treated crossbow ammunition acquired.
HEV_RPGAMMO	fvox/blip get_rpgammo acquired	[Blip] Laser-guided rocket acquired.
HEV_AGRENADE	fvox/blip get_assaultgren acquired	[Blip] Self-propelled grenade acquired.
HEV_EGONPOWER	fvox/blip get_egonpower acquired	[Blip] Energy recharge unit acquired.
N/A	fvox/ammo_pickup	Ammunition acquired.
N/A	fvox/weapon_pickup	Weapon acquired.

Armor and Power Monitoring#

General failure lines for the HEV suit taking damage, including lines for losing and gaining power and for overusing the long jump module, a behavior left unimplemented in the game.

Name	Sentence	Transcript
HEV_D00	fvox/fuzz fuzz(p130), power_restored	[Two fuzzes] Power restored.
HEV_D01	fvox/fuzz fuzz(p80), hev_shutdown	[Two fuzzes] Insufficient power. HEV shutting down.
HEV_0P	fvox/fuzz fuzz, power_below five percent	[Two fuzzes] Warning: HEV power level below five percent.
HEV_E0	fvox/buzz buzz, armor_gone	[Two buzzes] Armor compromised.
HEV_E1	fvox/buzz, armor_gone	[Buzz] Armor compromised.
HEV_E2	fvox/buzz, hev_critical_fail	[Buzz] HEV critical failure. Failure.
HEV_E3	fvox/buzz, hev_general_fail	[Buzz] HEV general failure.
HEV_E4	fvox/buzz, hev_damage	[Buzz] HEV damage sustained.
HEV_E5	fvox/buzz, powermove_overload	[Buzz] Warning: Power movement system overload.

Communications#

Two sentences address a "voice system" of unknown purpose.

Sound	Name	Sentence	Transcript
	HEV_V0	fvox/blip, voice_on	[Blip] Voice system activated.
	HEV_V1	fvox/blip, voice_off	[Blip] Voice system deactivated.

Contaminant Sensors#

Unused lines connected to unimplemented biohazard types, as well as some commented-out lines connected to a "range" suit function.

Name	Sentence	Transcript
HEV_DET0	fvox/blip blip blip, biohazard_detected	[Three blips] Warning: Biohazard detected.
HEV_DET3	fvox/blip blip blip, bio_reading	[Three blips] Possible bio-reading
HEV_DET4	fvox/blip blip blip, antitoxin_shot(e50), onehundred percent	[Three blips] Antitoxin one hundred percent.
HEV_DET5	fvox/blip blip blip, antitoxin_shot(e25) radiation_detected(e50), onehundred percent	[Three blips] Antitox- Warning. Hazardous radi- One hundred percent.
//HEV_GR0r	fvox/range twenty meters(t60)	Range: Twenty [quickly] meters.
//HEV_GR1r	fvox/range nineteen meters	Range: Nineteen meters.
//HEV_GR2r	fvox/range eighteen meters	Range: Eighteen meters.

"HEV_DET5" was likely meant to be something along the lines of "Antiradiation one hundred percent", but broke as lines were rerecorded.

Time Functions#

A series of commented-out lines in sentences include lines for the HEV suit telling the time and voicing a "time remaining".

Name	Sentence	Transcript
//HEV_C1t	fvox/bell time_is_now one AM	[Bell] The time is now 1AM.
//HEV_C13t	fvox/bell time_is_now one PM	[Bell] The time is now 1PM.
//HEV_F10t	fvox/bell time_remaining ten seconds	[Bell] Time remaining: ten seconds.
//HEV_F15t	fvox/bell time_remaining fifteen seconds	[Bell] Time remaining: fifteen seconds.
//HEV_F20t	fvox/bell time_remaining twenty seconds	[Bell] Time remaining: twenty seconds.
//HEV_F30t	fvox/bell time_remaining thirty seconds	[Bell] Time remaining: thirty seconds.

Sentenceless Files#

On top of unused sentences, there are also lines and sentence fragments left solely as sound files.

Numbers#

General-purpose numbers. five, ten and fifteen are used in-game for battery readings.

Sound	Filename	Transcript
	fvox/one	1
	fvox/two	2
	fvox/three	3
	fvox/four	4
	fvox/six	6
	fvox/seven	7
	fvox/eight	8
	fvox/nine	9
	fvox/eleven	11
	fvox/twelve	12
	fvox/thirteen	13
	fvox/fourteen	14
	fvox/sixteen	16
	fvox/seventeen	17
	fvox/eighteen	18
	fvox/nineteen	19

Position#

Sounds for an unused ability for the HEV suit to tell the player their current direction also exist.

Sound	Filename	Transcript
	fvox/your	Your
	fvox/position	Position
	fvox/north	North
	fvox/south	South
	fvox/east	East
	fvox/west	West

Other#

Sound	Filename	Transcript
	fvox/danger	Danger
	fvox/online	Online

Announcement System#

The Black Mesa Announcement System has a variety of written lines for every chapter, but a majority of locations do not use the "speaker" entity anywhere on their maps, leaving over half the notifications unused.

Area-Specific Lines#

Anomalous Materials#

The announcement system has an unused "login" sound clip welcoming the player.

Sound	Name	Sentence	Transcription
	C1A0_START	vox/dadeda vox_login	[Jingle] Hello. The Automatic Diagnostic and Announcement System welcomes you to the Black Mesa Research Facility. Remember: Have a secure day.

Office Complex#

Name	Sentence	Transcript
C1A2_0	vox/deeoo (e95) emergency cleanup team to(e70) biological waste processing plant(e100)	[Alert] Emergency clean-up team to Biological Waste Processing Plant.
C1A2_1	vox/buzwarn buzwarn attention, administration personnel evacuate sector d immediately	[Warning] Attention: Administration personnel, evacuate Sector D immediately.
C1A2_2	vox/deeoo deeoo attention, security personnel to sector d	[Alert] Attention: Security personnel to Sector D.
C1A2_3	vox/deeoo (e95) service team, check elevator one(s0 e100 t0), (p100) sector c(e100)	[Alert] Service team, check Elevator 1, Sector C.
C1A2_4	vox/buzwarn buzwarn warning, unauthorized biological forms detected in ventillation system	[Warning] Warning: Unauthorized biological forms detected in ventilation system.
C1A2_5	vox/deeoo (e95 p103) lieutenant backman and cleanup team, to(e70) sub level three(e100)	[Alert] Lieutenant Backman and cleanup team to Sub-Level 3.
C1A2_6	vox/bizwarn bizwarn bizwarn danger, turret defense systems activated, sector d	[Danger] Danger: Turret defense systems activated, Sector D.
C1A2_7	vox/deeoo deeoo security officer reports men down in sector d, medical help required	[Alert] Security officer reports men down in Sector D, medical help required.
C1A2_8	vox/bizwarn bizwarn bizwarn extreme danger, all turret defense systems activated, sector d	[Danger] Extreme danger, all turret defense systems activated, Sector D.
C1A2_9	vox/deeoo (e95) turret repair personnel, to(e70) high security materials storage area(e100)	[Alert] Turret repair personnel to High Security Materials Storage Area.
C1A2_10	vox/deeoo deeoo attention. electric shock hazard detected in administration center	[Alert] Attention: Electric shock hazard detected in Administration Center.
C1A2_11	vox/buzwarn buzwarn. security officer reports medical emergency, administration center	[Warning] Security officer reports medical emergency, Administration Center.

C1A2_4 would later be used in the Half-Life: Decay level Domestic Violence.

"We've Got Hostiles"#

Sound	Name	Sentence	Transcript
	C1A3_warn	vox/(p120) buzwarn buzwarn (p100 t15) attention. security lockout alert. security door will engage.	[Warning] Attention: Security lockout alert. Security door will engage.
	C1A3_lock	vox/(p120) bizwarn bizwarn (p98 t15) security door engaged, five, buzwarn(p130), four, buzwarn(p130), three, buzwarn(p130), two, buzwarn(p130), one, buzwarn(p130), lockout activated	[Danger] Security door engaged. 5. [Buzz] 4. [Buzz] 3. [Buzz] 2. [Buzz] 1. [Buzz] Lockout activated.

Blast Pit#

Name	Sentence	Transcript
C1A4_0	vox/buzwarn buzwarn. attention. experimental rocket test fire disengaged.	[Warning] Attention: Experimental rocket test fire disengaged.
C1A4_1	vox/deeoo (e95) repair crew report to(e70) track control, sector e(e100)	[Alert] Repair crew, report to Track Control, Sector E.
C1A4_2	vox/deeoo (e95) maintenance team blue(p100 t0 s0 e100), check heat exchange coolant level(e100)	[Alert] Maintenance Team Blue, check heat exchange coolant level.
C1A4_3	vox/deeoo (e95) maintenance team green, check voltage(e100) on cable seven two nine(e100)	[Alert] Maintenance Team Green, check voltage on Cable 729.
C1A4_4	vox/(p130) buzwarn buzwarn (p98 e95) medical team to materials storage facility, team bravo reports men down	[Warning] Medical Team to Materials Storage Facility, Team Bravo reports men down.
C1A4_5	vox/(p130) buzwarn buzwarn (p98 e95) alpha force move out, science personnel resistance extreme	[Warning] Alpha Force move out, science personnel resistance extreme.
C1A4_6	vox/(p130) buzwarn buzwarn (p98 e95) attention. all black mesa security personnel wanted for immediate questioning	[Warning] Attention: All Black Mesa security personnel wanted for immediate questioning.
C1A4_7	vox/(p130) buzwarn buzwarn (p98 e95) attention. gordon freeman report to military personnel for immediate security check	[Warning] Attention: Gordon Freeman, report to military personnel for immediate security check.
C1A4_8	vox/buzwarn buzwarn (p102) warning, hostile biological forms detected in track control sector e	[Warning] Warning: Hostile biological forms detected in Track Control, Sector E.
FUEL_OFF	vox/fuel and power must be engaged to activate rocket test fire	Fuel and power must be engaged to activate rocket test fire.

FUEL_OFF was likely meant to be played when trying to activate the rocket without having turned anything on, probably as an attempt to hint to players what to do.

Power Up#

Name	Sentence	Transcript
C2A1_0	vox/buzwarn buzwarn. warning. track power failure. check lower level power plant.	[Warning] Warning: Track power failure. Check lower level power plant.
C2A1_1	vox/deeoo (e95) maintenance team yellow, please(s0 e100) service relay three hundred ninety four(e100)	[Alert] Maintenance Team Yellow, please service Relay 394.
C2A1_2	vox/(p130) dadeda (p98 e95) attention. gordon freeman report to military personnel for immediate security check	[Jingle] Attention: Gordon Freeman, report to military personnel for immediate security check.
C2A1_3	vox/(p130) buzwarn buzwarn (p98 e95) delta team reports launch control secured	[Warning] Delta Team reports Launch Control secured.
C2A1_4	vox/bizwarn bizwarn bizwarn danger, turret defense systems activated, silo e	[Danger] Danger: Turret defense systems activated, Silo E.
C2A1_5	vox/deeoo sector e track control please report status	[Alert] Sector E Track Control, please report status.
C2A1_6	vox/(p130) buzwarn buzwarn (p98 e95) echo force reports perimeter breach, sector e	[Warning] Echo Force reports perimeter breach, Sector E.
C2A1_7	vox/(p130) buzwarn buzwarn (p98 e95) attention, search and destroy force go to code three. eliminate all biological forms.	[Warning] Attention: Search and Destroy Force go to Code 3. Eliminate all biological forms.
C2A1_8	vox/bizwarn bizwarn danger, unauthorized detonation detected in experimental propulsion lab	[Danger] Danger: Unauthorized detonation detected in Experimental Propulsion Laboratory.
POWER_ON	vox/deeoo main power is on	[Alert] Main power is on.

POWER_ON was very likely meant to be used for turning on the main track power at the end of the chapter.

On A Rail#

Name	Sentence	Transcript
C2A2_0	vox/buzwarn buzwarn. attention, clear silo e launch area immediately	[Warning] Attention: Clear Silo E launch area immediately.
C2A2_1	vox/deeoo (e95) containment inspection team, to(e70) advanced biological research lab(e100)	[Alert] Containment Inspection Team to Advanced Biological Research Laboratory.
C2A2_2	vox/(p130) buzwarn buzwarn (p98 e95) medical team to sector e, echo team has men down	[Warning] Medical team to Sector E, Echo Team has men down.
C2A2_3	vox/(p130) buzwarn buzwarn (p98 e95) alert, military personnel authorized to prosecute gordon freeman with extreme force	[Warning] Alert: Military personnel, authorized to prosecute Gordon Freeman with extreme force.
C2A2_3 [sic]	vox/(p130) buzwarn buzwarn (p98 e95) alert, military personnel, you are authorized to shoot the renegade on sight	[Warning] Alert: Military personnel, you are authorized to shoot the renegade on sight.
C2A2_4	vox/(p130) buzwarn buzwarn (p98 e95) alert, squad in silo e, freeman may be operating inside your perimeter	[Warning] Alert: Squad in Silo E, Freeman may be operating inside your perimeter.
C2A2_5	vox/deeoo deeoo launch control train activity detected	[Alert] Launch Control train activity detected.
C2A2_6	vox/(p130) buzwarn buzwarn (p98 e95) medical team to sector e, echo team squad failed to reach checkpoint	[Warning] Medical team to Sector E, Echo Team squad failed to reach checkpoint.
C2A2_7	vox/deeoo deeoo satellite rocket loading bay reports status green	[Alert] Satellite Rocket Loading Bay reports status green.
C2A2_launch	vox/(p50) deeoo deeoo deeoo (p100) satellite launch system activated. five deeoo(p50) four deeoo(p51) three deeoo(p52) two deeoo(p53) one deeoo(p54) launch is go	[Special alert] Satellite launch system activated. Five. [Beep] Four. [Beep] Three. [Beep] Two. [Beep] One. [Beep] Launch is go.

Due to (assumedly) a typo in the sentences file, the second "C2A2_3" would not play in maps due to duplicate names.

Residue Processing / Questionable Ethics#

The internal name "C2A4" covers both Residue Processing and Questionable Ethics, making it impossible to know what chapter each announcement was for. Mentions of lasers and sterilization systems, however, lean heavily towards the description of the latter chapter.

Name	Sentence	Transcript
C2A4_0	vox/buzwarn buzwarn warning. emergency containment system activated	[Warning] Warning: Emergency containment system activated.
C2A4_1	vox/bizwarn bizwarn. alert. biological containment breach detected	[Danger] Alert: Biological containment breach detected.
C2A4_2	vox/bizwarn bizwarn. warning, biological sterilization system activated	[Danger] Warning: Biological sterilization system activated.
C2A4_3	vox/(p130) buzwarn buzwarn (p98 e95) attention, hostile alien military force detected, advanced biological research lab	[Warning] Attention: Hostile alien military force detected, Advanced Biological Research Laboratory.
C2A4_4	vox/(p130) buzwarn buzwarn (p98 e95) search and destroy force reports back up required, engaged with extreme resistance	[Warning] Search and Destroy Force reports backup required, engaged with extreme resistance.
C2A4_5	vox/(p130) buzwarn buzwarn (p98 e95) topside containment force alert, hostile alien military force detected	[Warning] Topside Containment Force alert, hostile alien military force detected.
C2A4_6	vox/deeoo deeoo high power laser status is green	[Alert] High Power Laser status is green.
C2A4_7	vox/bizwarn bizwarn, alien containment system failure, use sterilization chamber	[Danger] Alien containment system failure, use sterilization chamber.
C2A4_8	vox/bizwarn bizwarn attention. all topside military personnel clear helicopter hangar four	[Danger] Attention: All topside military personnel, clear Helicopter Hangar 4.
C2A4_9	vox/bizwarn bizwarn, hostile alien breach, topside checkpoint alpha, checkpoint delta	[Danger] Alien breach, Topside Checkpoint Alpha, Checkpoint Delta.
C2A4_10	vox/(p130) buzwarn buzwarn (p98 e95) alert topside containment force, use any force to prosecute gordon freeman. you are authorized to shoot on sight.	[Warning] Alert: Topside Containment Force, use any force to prosecute Gordon Freeman. You are authorized to shoot on sight.
C2A4_11	vox/(p130) buzwarn buzwarn (p98 e95) alert topside containment force, freeman may approach your perimeter	[Warning] Alert: Topside Containment Force, Freeman may approach your perimeter.
C2A4_12	vox/(p105) gordon, all science personnel will be terminated until you surrender	Gordon, all science personnel will be terminated until you surrender.
C2A4_ster	vox/bizwarn bizwarn sterilization system activated	[Danger] Sterilization system activated.

"Forget About Freeman!"#

Many of these announcements reference areas that are not in "Forget About Freeman!", but seem to fit more for the cut chapter that evolved into "Forget About Freeman!", The Communication Center.

Name	Sentence	Transcript
C3A1_0	vox/buzwarn buzwarn warning primary antenna failure detected	[Warning] Warning: Primary Antenna failure detected.
C3A1_1	vox/(p130) buzwarn buzwarn (p98 e95) clear topside motorpool for emergency medical helicopter	[Warning] Clear Topside Motorpool for emergency medical helicopter.
C3A1_2	vox/(p130) buzwarn buzwarn (p98 e95) warning, topside armory security bypass detected	[Warning] Warning: Topside Armory security bypass detected.
C3A1_3	vox/bizwarn bizwarn warning, radiation leak detected in primary antenna area	[Danger] Warning: Radiation leak detected in Primary Antenna area.
C3A1_4	vox/(p130) buzwarn buzwarn (p98 e95) search and destroy force kilo, central command reports hostile alien force inside perimeter	[Warning] Search and Destroy Force Kilo, Central Command reports hostile alien force inside perimeter.
C3A1_5	vox/(p130) buzwarn buzwarn (p98 e95) message for gordon freeman, you will not escape this time	[Warning] Message for Gordon Freeman: you will not escape this time.
C3A1_6	vox/(p130) buzwarn buzwarn (p98 e95) attention all units, renegade freeman is now your primary target	[Warning] Attention: All (units), renegade Freeman is now your primary target.
C3A1_7	vox/(p130) buzwarn buzwarn (p98 e95) alert remaining containment force, freeman may have experimental weapon	[Warning] Alert: Remaining Containment Force, Freeman may have experimental weapon.
C3A1_8	vox/(p130) buzwarn buzwarn (p98 e95) all personnel evacuate lambda complex, extreme dimensional malfunction detected	[Warning] All personnel evacuate Lambda Complex, extreme dimensional malfunction detected.
C3A1_9	vox/bizwarn bizwarn fire control team to topside armory, checkpoint delta, topside hydro plant	[Danger] Fire Control Team to Topside Armory, Checkpoint Delta, Topside Hydro Plant.

"units" is missing from the announcement system's vocabulary, causing C3A1_6 to break if played in-game.

Note that C3A1_8 is identical to C3A2_2, a Vox line reused in the next chapter, Lambda Core.

Lambda Core#

Lambda Core does contain random Vox sentences. However, these more specific sentences go unused.

Name	Sentence	Transcript
C3A2_target	vox/bloop(p150) bloop(p150) satellite target system, engaged	[Info] Satellite target system engaged.
C3A2_portal	vox/bizwarn(p80) bizwarn(p80) bizwarn(p80) warning, cross(e80) dimensional portal device power level is one hundred twenty percent	[Special danger] Warning: Cross-Dimensional Portal Device power level is 120%.
C3A2_core	vox/bizwarn bizwarn bizwarn, attention lambda complex personnel, primary core activated	[Danger] Attention Lambda Complex personnel: Primary Core activated.

Hazard Course#

Two unused Vox lines may imply the idea of live fire in the Hazard Course.

Sound	Name	Sentence	Transcript
	TR_A	vox/three, two, one, deeoo(p110)	3. 2. 1. [Alert]
	TR_B	vox/deeoo(p110) (p102 t20) target system deactivated	[Alert] Target system deactivated.

Countdown#

Several of these are used in server-side deathmatch mods.

Name	Sentence / Filename	Transcript
CTR0	vox/zero	0
CTR1	vox/one second	1 second.
CTR2	vox/two	2
CTR3	vox/three seconds	3 seconds.
CTR4	vox/four	4
CTR5	vox/five seconds remaining	5 seconds remaining.
CTR6	vox/six	6
CTR7	vox/seven	7
CTR8	vox/eight	8
CTR9	vox/nine	9
CTR10	vox/ten seconds remaining	10 seconds remaining.
CTR11	vox/eleven	11
CTR12	vox/twelve	12
CTR13	vox/thirteen	13
CTR14	vox/fourteen	14
CTR15	vox/fifteen seconds remaining	15 seconds remaining.
CTR16	vox/sixteen	16
CTR17	vox/seventeen	17
CTR18	vox/eighteen	18
CTR19	vox/nineteen	19
CTR20	vox/twenty seconds remaining	20 seconds remaining.

Door Interaction Announcements#

Granting Access#

Name	Sentence	Transcript
EA0	vox/access granted	Access granted.
EA1	vox/access permitted	Access permitted.
EA2	vox/entry granted	Entry granted.
EA3	vox/entry permitted	Entry permitted.
EA4	vox/access authorized	Access authorized.
EA5	vox/entry is permitted	Entry is permitted.
EA6	vox/access authorized	Access authorized.
EA7	vox/access to facility granted	Access to facility granted.
EA8	vox/access granted	Access granted.

Security Lock On#

Name	Sentence	Transcript
ND0	vox/security lock is engaged	Security lock is engaged.
ND1	vox/secure area, no entry	Secure area; no entry.
ND2	vox/security lockout, no entry	Security lockout; no entry.
ND3	vox/secure door, no entry	Secure door; no entry.
ND4	vox/security system in force	Security system in force.
ND5	vox/security system armed, no entry	Security system armed; no entry.
ND6	vox/door is secured	Door is secured.
ND7	vox/illegal access, move away	Illegal access; move away.

Security Lock Off#

Name	Sentence	Transcript
ED0	vox/security lock disengaged	Security lock disengaged.
ED1	vox/security clear, proceed	Security clear; proceed.
ED2	vox/security lockout released	Security lockout released.
ED3	vox/secure override accepted	Secure override accepted.
ED4	vox/security access acknowledged	Security access acknowledged.
ED5	vox/security system disengaged	Security system disengaged.
ED6	vox/door security disengaged	Door security disengaged.

Blast Door#

Name	Sentence	Transcript
EF0	vox/emergency blast door, open	Emergency blast door: Open.
EF1	vox/emergency blast shield, deactivated	Emergency blast shield: Deactivated.
EF3	vox/blast containment shield is, open	Blast containment shield is: Open.

Fire Door#

Sound	Name	Sentence	Transcript
	EFIRE0	vox/fire containment door, open	Fire containment door: Open.

Chemical Door#

Sound	Name	Sentence	Transcript
	NCHEM0	vox/chemical leak containment door activated	Chemical leak containment door activated.
	ECHEM0	vox/chemical leak containment door, open	Chemical leak containment door: Open.

Radiation Door#

Sound	Name	Sentence	Transcript
	NRAD0	vox/radiation containment door activated	Radiation containment door activated.
	ERAD0	vox/radiation containment door, open	Radiation containment door: Open.

Generic Containment Door#

Sound	Name	Sentence	Transcript
	ECON0	vox/emergency containment door disengaged	Emergency containment door disengaged.

Maintenance Door#

Name	Sentence	Transcript
NH0	vox/no access, maintenance area	No access; maintenance area.
NH1	vox/no personnel permitted in maintenance area	No personnel permitted in maintenance area.
EH0	vox/maintenance area access granted	Maintenance area access granted.
EH1	vox/maintenance area door open	Maintenance area door open.

Defense System Warnings#

Name	Sentence	Transcript
T0	vox/extreme hazard, defense system is armed in this zone	Extreme hazard; defense system is armed in this zone.
T1	vox/hazard area, defense system activated	Hazard area; defense system activated.
T2	vox/danger, turret perimeter defense system armed	Danger: Turret perimeter defense system armed.
T3	vox/extreme hazard, nearest defense system engaged	Extreme hazard; nearest defense system engaged.
T4	vox/danger, base defense turret system may power up	Danger: Base defense turret system may power up.
T5	vox/danger, automatic defense system activated	Danger: Automatic defense system activated.

Warning and Danger Notifications#

Electric#

Name	Sentence	Transcript
WE0	vox/warning, high voltage cable	Warning: High voltage cable.
WE1	vox/warning, high power cable	Warning: High power cable.
WE2	vox/warning, electric shock hazard	Warning: Electric shock hazard.
WE3	vox/warning, severe electric shock hazard	Warning: Severe electric shock hazard.

Radiation#

Name	Sentence	Transcript
DR0	vox/danger, radiation leak detected	Danger: Radiation leak detected.
DR1	vox/danger, radiation hazard detected	Danger: Radiation hazard detected.
DR2	vox/danger, high radiation level detected	Danger: High radiation level detected.
DR3	vox/danger, severe radiation hazard, evacuate area immediately	Danger: Severe radiation hazard; evacuate area immediately.
DR4	vox/danger, safety violation, extreme radiation level detected	Danger: Safety violation; extreme radiation level detected.

Chemical#

Name	Sentence	Transcript
DC0	vox/danger, chemical leak, area now a high health hazard	Danger: Chemical leak; area now a high health hazard.
DC1	vox/danger, chemical coolant leak, health hazard zone	Danger: Chemical coolant leak; health hazard zone.
DC2	vox/danger, chemical containment breach, all personnel evacuate this area	Danger: Chemical containment breach; all personnel evacuate this area.
DC3	vox/danger, supercooled chemical leak	Danger: Supercooled chemical leak.
DC4	vox/danger, supercooled helium leak	Danger: Supercooled helium leak.

Biohazard#

Name	Sentence	Transcript
DB0	vox/danger, liquid biohazard leak in immediate area	Danger: Liquid biohazard leak in immediate area.
DB1	vox/danger, coolant leak, severe biohazard now in this area	Danger: Coolant leak; severe biohazard now in this area.
DB2	vox/danger, liquid biohazard released, evacuate area	Danger: Liquid biohazard released; evacuate area.
DB3	vox/danger, biohazard detected in immediate area	Danger: Biohazard detected in immediate area.

Sentenceless Files#

The Announcement System does contain some sound files that aren't used in any used or unused sentence.

Adios, Amigo#

Two sound files that seem out-of-place for the tone Half-Life tries to go for.

Sound	Filename	Transcript
	vox/adios	Adios
	vox/amigo	Amigo

Phonetic/Military Alphabet#

The Announcement System contains (almost) the entire phonetic alphabet in its sound files. While most of these files are used, there are some that aren't used at all.

Sound	Filename	Transcript
	vox/charlie	Charlie
	vox/foxtrot	Foxtrot
	vox/gulf	Gulf
	vox/juliet	Juliet
	vox/tango	Tango
	vox/uniform	Uniform
	vox/whiskey	Whiskey
	vox/yankee	Yankee
	vox/zulu	Zulu

Separated vox_login#

At one point, the vox_login sound file was originally multiple words instead of one word. While some of these files are used in other announcements, others are completely unused. Certain files are missing altogether (i.e. welcomes).

Sound	Filename	Transcript
	vox/hello	Hello
N/A	vox/diagnostic	[File does not exist]

Misc.#

This page or section needs more audio.
There's a whole lotta words here, but not enough audio. Please fix this.
Specifically: Upload the rest of the sound files.

More words not used in any sentence whatsoever.

Sound	Filename	Transcript
	vox/across	Across
	vox/accelerating	Accelerating
	vox/ammunition	Ammunition
	vox/ass	Ass
	vox/goodbye	Goodbye
	vox/government	Government
	vox/idiot	Idiot
	vox/usa	USA
	vox/yes	Yes

HECU Marines#

The marines also work the same way as the HEV and the announcement system by using segmented voice files to form sentences. There are normal and exclaimed variants of words. A lot of files go unused in sentences.

Sentenceless Files#

There are words from the marines that didn't make it in any sentences.

Numbers#

There are examples of the marines using numbers that aren't used.

Sound	Filename	Transcript
	hgrunt/zero!	Zero!
	hgrunt/one!	One!
	hgrunt/one	One
	hgrunt/two	Two
	hgrunt/three!	Three!
	hgrunt/three	Three
	hgrunt/four!	Four!
	hgrunt/five!	Five!
	hgrunt/five	Five
	hgrunt/six!	Six!
	hgrunt/six	Six
	hgrunt/niner!	Niner!

Measurement#

There are examples of the marines using measurement that aren't used.

Sound	Filename	Transcript
	hgrunt/fivemeters	5 meters.
	hgrunt/tenmeters	10 meters.
	hgrunt/twentymeters	20 meters.
	hgrunt/thirtymeters	30 meters.
	hgrunt/fortymeters	40 meters.
	hgrunt/fiftymeters	50 meters.
	hgrunt/sixtymeters	60 meters.
	hgrunt/seventymeters	70 meters.
	hgrunt/eightymeters	80 meters.
	hgrunt/hundredmeters	100 meters.
	hgrunt/onefiftymeters	150 meters.
	hgrunt/twohundredmeters	200 meters.

Direction#

There are examples of the marines using direction (N. E. S. W.) that aren't used.

Sound	Filename	Transcript
	hgrunt/north!	North!
	hgrunt/north	North
	hgrunt/east!	East!
	hgrunt/east	East
	hgrunt/south!	South!
	hgrunt/south	South
	hgrunt/west!	West!
	hgrunt/west	West

Phonetic/Military Alphabet#

There are examples of the marines using the phonetic alphabet that aren't used.

Sound	Filename	Transcript
	hgrunt/bravo!	Bravo!
	hgrunt/charlie!	Charlie!
	hgrunt/charlie	Charlie
	hgrunt/delta!	Delta!
	hgrunt/echo!	Echo!
	hgrunt/foxtrot!	Foxtrot!
	hgrunt/tango!	Tango!
	hgrunt/zulu!	Zulu!
	hgrunt/zulu	Zulu

Punctuation#

A period sound was planned to be used, but was instead replaced by the "clik" sound instead.

Sound	Filename
	hgrunt/_period

Misc.#

All the other examples of files that are ambiguous to any other category. "heavy!" and "those!" were eventually used in Half-Life: Decay.

Sound	Filename	Transcript
	hgrunt/a!	A!
	hgrunt/a	A
	hgrunt/affirmative!	Affirmative!
	hgrunt/alien	Alien
	hgrunt/all!	All!
	hgrunt/am!	Am!
	hgrunt/am	Am
	hgrunt/anything!	Anything!
	hgrunt/are!	Are!
	hgrunt/ass	Ass
	hgrunt/at!	At!
	hgrunt/away!	Away!
	hgrunt/backup	Backup
	hgrunt/bag!	Bag!
	hgrunt/bastard!	Bastard!
	hgrunt/bastard	Bastard
	hgrunt/blow!	Blow!
	hgrunt/bogies	Bogies
	hgrunt/call!	Call!
	hgrunt/casualties!	Casualties!
	hgrunt/check!	Check!
	hgrunt/checking!	Checking!
	hgrunt/checking	Checking
	hgrunt/command!	Command!
	hgrunt/continue!	Continue!
	hgrunt/continue	Continue
	hgrunt/control!	Control!
	hgrunt/creeps!	Creeps!
	hgrunt/creeps	Creeps
	hgrunt/damn	Damn
	hgrunt/eliminate	Eliminate!
	hgrunt/fight!	Fight!
	hgrunt/fight	Fight
	hgrunt/force!	Force!
	hgrunt/force	Force
	hgrunt/formation!	Formation!
	hgrunt/god	God
	hgrunt/going!	Going!
	hgrunt/guard!	Guard!
	hgrunt/guard	Guard
	hgrunt/have!	Have!
	hgrunt/have	Have
	hgrunt/he!	He!
	hgrunt/heavy!	Heavy!
	hgrunt/hell!	Hell!
	hgrunt/hell	Hell
	hgrunt/hold!	Hold!
	hgrunt/hot	Hot
	hgrunt/i!	I!
	hgrunt/is!	Is!
	hgrunt/lay!	Lay!
	hgrunt/left!	Left!
	hgrunt/left	Left
	hgrunt/lets	Lets
	hgrunt/level!	Level!
	hgrunt/lookout!	Lookout!
	hgrunt/maintain!	Maintain!
	hgrunt/mission!	Mission!
	hgrunt/mister!	Mister!
	hgrunt/mother!	Mother!
	hgrunt/move	Move
	hgrunt/moves!	Moves!
	hgrunt/my	My
	hgrunt/negative!	Negative!
	hgrunt/neutralized!	Neutralized!
	hgrunt/nothing!	Nothing!
	hgrunt/objective!	Objective!
	hgrunt/of	Of
	hgrunt/orders!	Orders!
	hgrunt/orders	Orders
	hgrunt/our!	Our!
	hgrunt/out	Out
	hgrunt/over!	Over!
	hgrunt/patrol!	Patrol!
	hgrunt/patrol	Patrol
	hgrunt/people!	People!
	hgrunt/position!	Position!
	hgrunt/post!	Post!
	hgrunt/private!	Private!
	hgrunt/private	Private
	hgrunt/quiet!	Quiet!
	hgrunt/radio!	Radio!
	hgrunt/right!	Right!
	hgrunt/right	Right
	hgrunt/roger!	Roger!
	hgrunt/secure!	Secure!
	hgrunt/shit	Shit
	hgrunt/shot!	Shot!
	hgrunt/shot	Shot!
	hgrunt/sign!	Sign!
	hgrunt/signs!	Signs!
	hgrunt/signs	Signs
	hgrunt/silence!	Silence!
	hgrunt/silence	Silence
	hgrunt/sir!	Sir!
	hgrunt/some!	Some!
	hgrunt/some	Some
	hgrunt/something!	Something!
	hgrunt/stay!	Stay!
	hgrunt/sweep!	Sweep!
	hgrunt/target	Target
	hgrunt/team!	Team!
	hgrunt/that!	That!
	hgrunt/there!	There!
	hgrunt/these!	These!
	hgrunt/these	These
	hgrunt/those!	Those!
	hgrunt/those	Those
	hgrunt/tight!	Tight!
	hgrunt/tight	Tight
	hgrunt/under!	Under!
	hgrunt/up!	Up!
	hgrunt/up	Up
	hgrunt/weapons!	Weapons!
	hgrunt/weird!	Weird!
	hgrunt/weird	Weird
	hgrunt/we've!	We've!
	hgrunt/we've	We've
	hgrunt/yeah!	Yeah!
	hgrunt/yeah	Yeah
	hgrunt/yes!	Yes!
	hgrunt/yes	Yes
	hgrunt/yessir!	Yessir!
	hgrunt/you!	You!
	hgrunt/zone!	Zone!

Other#

These are sounds that do not belong in the segmented voice files. All of these originate from the September 1997 build of Half-Life.

Sound	Filename	Transcript
	hgrunt/gr_alert1	(?)
	hgrunt/gr_loadtalk	I got somethin' for you.
	hgrunt/gr_mgun3	N/A
	hgrunt/gr_step1	N/A
	hgrunt/gr_step2	N/A
	hgrunt/gr_step3	N/A
	hgrunt/gr_step4	N/A

Security Guard#

Unused Hearing Mechanic#

A feature involving hearing a concerning sound and reacting to it was left unused in both security guards and scientists.

Name	Filename	Transcript
BA_HEAR0	barney/hearsomething	I hear something.
N/A	barney/hearsomething2	Hey, hey, I hear something.
BA_HEAR1	barney/icanhear	That doesn't sound right.
BA_HEAR2	barney/soundsbad	Man, that sounded bad.

barney/icanhear was later reused in the intro to Half-Life: Blue Shift. barney/hearsomething2 was also used as one of the "lyrics" in the main theme of the Half-Life 2 promotional spinoff game, Codename Gordon.

Area-Specific Lines#

Hazard Course#

Sound	Name	Filename	Transcript
	BA_LIGHTSON	holo/tr_ba_lightson	Let me get the lights and you can try that again.

Office Complex#

Sound	Name	Filename	Transcript
	BA_SLEW	barney/c1a2_ba_slew	Word is once we get to the surface, the military's made arrangements for us.
	BA_TOPSIDE	barney/c1a2_ba_top	Maybe help is on its way, but I'm not waiting around for it. We got to get topside!

Blast Pit#

Unused alternate takes of Barney threatening the first bunch of Tentacles. c1a4_ba_octo4 is used in Half-Life: Uplink.

Sound	Filename	Transcript
	barney/c1a4_ba_octo2	Hey, hey you take me down!
	barney/c1a4_ba_octo4	Hey, eat this you bastard!

Power Up#

Sound	Filename	Transcription
	barney/c2a1_ba_again	What I said is... Ugh... you got to get to the generator... Agh...

Questionable Ethics#

Name	Filename	Transcript
BA_LONGNITE	barney/c2a4_ba_longnite	Jeez, and I thought I had a long night. You look like hell! I don't suppose the day's going to be any easier. Listen, I'm going to wait it out right here. You go on ahead if you have to.
BA_STERIL	barney/c2a4_ba_steril	Get in here, quick!
BA_TEACH	barney/c2a4_ba_teach	These sterilizers come in handy. You ever find yourself in a bind, just duck into one of these booths, hit the big button. They're supposed to kill microorganisms, but- heh- they work on the big stuff too.

Surface Tension#

Name	Filename	Transcript
BA_LETMEOUT	barney/c2a5_ba_letout	Hey! Hey! Hey, lemme outta here!
BA_RPG	barney/c2a5_ba_rpg	This is your lucky day. There's a rocket propelled grenade launcher in there, laser sight and everything. Now, if you can figure a way in, you'll be an even match for these bastards.
BA_SNIPED	barney/c2a5_ba_sniped	I've been hit! Stay back! Sniper got me!

Lambda Core#

Sound	Name	Filename	Transcript
	BA_PORTSTAY	barney/c3a2_ba_stay	I'm gonna stay down here. If I see anything looks like it doesn't belong here, I'll start shooting.

Other#

Sound	Filename	Transcript
	barney/badarea	This area just doesn't feel right.
	barney/whatgood	I don't know what good we could do here.

Scientist#

Unused Mechanics#

Monster Alert#

Two lines connected to the scientist spotting an alien. The nomenclature of the sentences matches that of the Human Grunts calling out an alien, suggesting a similar purpose.

Sound	Name	Filename	Transcript
	SC_MONST0	scientist/seeheadcrab	Why look, another headcrab.
	SC_MONST1	scientist/importantspecies	Another important species revealed in action.

Hearing#

A feature involving hearing a concerning sound and reacting to it was left unused in both security guards and scientists. Notably, SC_HEAR0 was reused as an idle line for the scientist (SC_IDLE13).

Name	Filename	Transcript
SC_HEAR0	scientist/ihearsomething	I hear something.
SC_HEAR1	scientist/didyouhear	Did you hear that?
SC_HEAR2	scientist/whatissound	That sound... What is it?

Area-Specific Lines#

Anomalous Materials#

Sound	Name	Filename	Transcript
	N/A	scientist/c1a0_sci_itsyou	Oh, it's you. I thought it might be another of the Administrator's men. They're everywhere this morning.
	SC_DIS4A	scientist/c1a0_sci_dis4a	Tell him to stand back from the focal stage. That suit won't do him any good if he wanders into the beam.
	SC_DIS8A	scientist/c1a0_sci_dis8a	[File is empty]
	SC_DIS17A	scientist/c1a0_sci_dis17a	He waited too long! We can't contain it!
N/A	SC_NOTTHAT	scientist/c1a0_sci_desk	[File does not exist]
N/A	SC_LOCK9A	scientist/c1a0_sci_lock9a	[File does not exist]

Unforeseen Consequences#

Sound	Name	Filename	Transcript
	SC_CONSOLE5A	scientist/c1a1_sci_5scan	Be careful, Gordon!
	SC_CONSOLERPT	scientist/c1a1_sci_scanrpt	You'll need me to activate the retinal scanners.

Interestingly, SC_CONSOLE5A is not called due to what appears to be a typo in the map coding: After using the retinal scanner in map c1a0c, Eli is programmed to speak sentence "SC_CONSOLE5", a letter off from the actual sentence. In addition, SC_CONSOLERPT is a cropped version of the used c1a1_sci_4scan.

There are also 5 files where a scientist counts by using "one thousand" as a placeholder. These are present in the Net-Test 1 build of Half-Life when the scientist is reviving the guard.

Sound	Filename	Transcript
	scientist/sci_1thou	One one thousand.
	scientist/sci_2thou	Two one thousand.
	scientist/sci_3thou	Three one thousand.
	scientist/sci_4thou	Four one thousand.
	scientist/sci_5thou	Five one thousand.

Office Complex#

Sound	Name	Filename	Transcript
	SC_ELEVATOR	scientist/c1a2_sci_elevator	If you can make it up the elevator shaft, you should able to get to the surface. Try to send help and let the world know what has happened.

"We've Got Hostiles!"#

Sound	Name	Filename	Transcript
	SC_ATLAST	scientist/c1a3_sci_atlast	Rescued at last!

This line is a cropped version of the used file "c1a3_sci_rescued".

Blast Pit#

Sound	Name	Filename	Transcript
	SC_TRAINEND	scientist/1a4_sci_trainend	Have you heard? They're killing scientists. Our own race turning against us. I think I'll stay here and take my chances with the creatures.
	SC_BLIND	scientist/c1a4_sci_blind	Is someone there? I-I can't see a thing.

SC_BLIND would be reused in the Uplink demo.

Questionable Ethics#

Sound	Name	Filename	Transcript
	SC_ALLDIE	scientist/c2a4_sci_alldie	If you let us all die, Freeman, you'll never get out of here!

Surface Tension#

Sound	Name	Filename	Transcript
	SC_LEBUZ	scientist/c2a5_sci_lebuz	Thank you, Mr. Freeman. You are Gordon Freeman, aren't you? The one they're expecting in the Lambda Complex? If you can figure a way past that Gargantua on the landing field and through the bunker door out there, you'll find yourself at the Lambda Lab's doorstep.

Note that the "Gargantua on the landing field" can be seen in prerelease media, and oddly, the color test image used in pre-Steam versions of the game.

"Forget About Freeman!"#

All unused lines in this section seem to be made for The Communications Center, an earlier version of this chapter. Of note is that all lines in this section were repurposed for the Uplink demo.

Sound	Filename	Transcript
	scientist/c3a1_sci_dome	Freeman. You want to work quickly. Tune the transmitter to US NRC. I repeat! Tune to the US NRC.
	scientist/c3a1_sci_done	Excellent. I'm sending the "All-Clear" and the door should open now. We'll meet you down below.

Lambda Core#

Sound	Filename	Transcript
	scientist/c3a2_sci_1glu	Psst! Over here.
	scientist/c3a2_sci_3glu	I see you found the Gluon Gun. I hope it serves you better than it has me. I built the thing, but I can't bring myself to use it on a living creature.
	scientist/c3a2_sci_shower	Freeman! What a relief to see you. We've been tracking your progress. I've stayed behind to let you into the Reactor Complex. You'll need me to activate the retinal scanner.

A differently-written version of c3a2_sci_3glu is used in-game as c3a2_sci_2glu.

Obsoleted Sentences#

Two Blast Pit sentences for the opening of the chapter are left unused, due to the sound files instead being called from the scientist model's animations.

Name	Filename
SC_ROCKET	scientist/c1a4_sci_rocket
SC_TENT	scientist/c1a4_sci_tent

General Sounds#

Pain Sounds#

There are 5 unused pain sounds from the scientists. Some were eventually used in scripted scenes in Half-Life: Opposing Force.

Filename	Transcript	Note
scientist/sci_pain6	No!
scientist/sci_pain7	No!
scientist/sci_pain8	No!	Used in Opposing Force as a scripted sequence in the chapter Welcome to Black Mesa.
scientist/sci_pain9	Stop!
scientist/sci_pain10	No!

Screams#

There are 24 unused scream sounds from the scientists. The Scientist screams are only used when scripted to. Some were eventually used in scenes in Half-Life: Opposing Force and Half-Life: Blue Shift.

Filename	Transcript	Note
scientist/scream1	[scream]	Slightly sped up and echoed version of scientist/scream24. Used in Opposing Force in the chapter "We Are Pulling Out".
scientist/scream03	[scream]
scientist/scream04	[scream]	Reused for the Uplink demo.
scientist/scream4	[scream]	Slightly sped up and echoed version of scientist/scream22.
scientist/scream5	[scream]	Slightly sped up, echoed and trimmed version of scientist/scream21.
scientist/scream06	[scream]
scientist/scream6	[scream]	Slightly sped up and echoed version of scientist/scream25. Used in Opposing Force in the chapter We Are Not Alone.
scientist/scream7	[scream]	Same as scientist/scream6.
scientist/scream08	[scream]
scientist/scream09	[scream]
scientist/scream11	Stop!
scientist/scream12	Stop!
scientist/scream13	No!
scientist/scream16	[scream]
scientist/scream17	[scream]	Used in Opposing Force in the chapter Welcome to Black Mesa.
scientist/scream18	[scream]
scientist/scream19	[scream]
scientist/scream20	[scream]
scientist/scream21	[scream]
scientist/scream22	[scream]	Used in Opposing Force in the chapter Welcome to Black Mesa. It is also used in Blue Shift in the chapter Insecurity.
scientist/scream23	[scream]
scientist/scream24	[scream]
scientist/scream25	[scream]

Other#

Name	Filename	Transcript
SC_NOGO	scientist/dontgothere	No, don't go that way!
SC_OVERHERE	scientist/overhere	Psst, over here.
N/A	scientist/protectme	I can get you some valuable supplies, if you'll protect me.
	scientist/ushouldsee	There's something you should see.
	scientist/waithere	Don't you think we should wait here for a while?
	scientist/whoareyou	Who are you? I've been waiting here for ages hoping someone would come along.
	scientist/yesihope	Yes, I sincerely hope you know what you are doing.
	scientist/yesok	Yes, okay!

SC_OVERHERE was later used in Half-Life: Decay.

Scientist-Security Conversations#

C1A2 "Zombie" Scene#

Multiple lines for an unused scene in Office Complex involving a security guard being overcome by a zombie, requiring the player to shoot it.

Name	Filename	Character	Transcript
SC_ZOMBIE1A	scientist/c1a2_sci_1zomb	Scientist	Get out of there! Run, man, run!
BA_ZOMBIE2	barney/c1a2_ba_2zomb	Guard	It's okay, sir, I can take him!
SC_ZOMBIE3A	scientist/c1a2_sci_3zomb	Scientist	Don't be a fool!
BA_ZOMBIE4	barney/c1a2_ba_4zomb	Guard	Argh, oh shit!
SC_ZOMBIE5A	scientist/c1a2_sci_5zomb	Scientist	Nooo!
SC_ZOMBIE6A	scientist/c1a2_sci_6zomb	Scientist	Don't just stand there! Pick up that gun and shoot it!

c1a2_ba_2zomb was re-used in Half-Life: Opposing Force.

C2A4 "Argument" Scene#

An unused scene in Questionable Ethics in which a security guard, fittingly, questions the ethics of one of the scientists.

Name	Filename	Character	Transcript
BA_ARG1A	barney/c2a4_ba_arg1a	Guard	This is all happening because of you scientists!
SC_ARG1A	scientist/c2a4_sci_arg2a	Scientist	It's not our fault, I tell you.
BA_ARG2A	barney/c2a4_ba_arg3a	Guard	It is, you made these mutants!
SC_ARG2A	scientist/c2a4_sci_arg4a	Scientist	Nature made them. We were only studying them.
BA_ARG3A	barney/c2a4_ba_arg5a	Guard	Shut up, someone's coming.

c2a4_ba_arg1a was re-used in the trailer for Half-Life: Opposing Force.

C3A1 "Satellite" Scene#

Unused dialogue for a scene in the scrapped Communications Center chapter, reused for the Uplink demo.

Filename	Character	Transcript
barney/c3a1_ba_1sat	Guard	Open up the Reactor Complex so we can get down to safety.
scientist/c3a1_sci_2sat	Scientist	I'm sorry, but those doors will not open until we send the "All-Clear".
barney/c3a1_ba_3sat	Guard	So send it already!
scientist/c3a1_sci_4sat	Scientist	I would love to do that, but the aerial bombardment has made a wreck of my transmitter. The cables are severed, we'd have to aim it by hand, and I'm getting high radiation levels in the transmitter dome. Nobody but a fool would go in there.
barney/c3a1_ba_5sat	Guard	What about this guy?
scientist/c3a1_sci_6sat	Scientist	Yes. You could survive in that suit of yours. Very well. I will lower security on the satellite access elevator, and you can go up into the dome. I'll try to help you over the intercom.

G-Man#

Mumbling#

Half of the glass-muffled conversation from Anomalous Materials goes unused. NOTE: The transcription is only an approximation.

Name	Filename	Transcript
GM_2MUMBLE	gman/gman_mumble2	You must not get in our way.
GM_3MUMBLE	gman/gman_mumble3	I want to give you an offer you won't regret.
GM_6MUMBLE	gman/gman_mumble6	You're a scientist, I'm a frog. Ta-ta.

Unused Ending Line#

An expanded version of the voice lines used if one refuses to work for G-Man at the end of the game.

Sound	Filename	Transcript
	gman/gman_noregret	Well, it looks like we won't be working together. No regrets, Mr. Freeman, but there are a few survivors of your personal holocaust who would like the chance to meet the man responsible for the total annihilation of their race.

Unsplit Ending Speech#

The G-Man's ending speech is split across multiple sentences for ease of access. However, a commented-out sentence and unused wave file contain the speech unfragmented and with a less consistent volume.

Sound	Name	Filename	Transcript
	//GM_OFFER	gman/gman_offer	Gordon Freeman, in the flesh—or, rather, in the hazard suit. I took the liberty of relieving you of your weapons. Most of them were government property. As for the suit, I think you've earned it. The borderworld, Xen, is in our control, for the time being, thanks to you. Quite a nasty piece of work you managed over there; I am impressed. That's why I'm here, Mr. Freeman. I have recommended your services to my... employers, and they have authorized me to offer you a job. They agree with me that you have limitless potential. You've proved yourself a decisive man so I don't expect you'll have any trouble deciding what to do. If you're interested, just step into the portal and I will take that as a yes. Otherwise, well, I can offer you a battle you have no chance of winning. Rather an anticlimax after what you've just survived.

Nihilanth#

The Nihilanth has some unused quotes as well.

Sound	Filename	Transcript
	nihilanth/nil_win	Win... you cannot win...
	nihilanth/nil_last	The last... you are the last... you are...
	nihilanth/nil_man_notman	You are man... he is not man... for you he waits... for you...
	nihilanth/nil_slaves	Their slaves... we are their slaves... we are...

Unused Shoot Sound#

The Nihilanth, under the "x" folder, also contains a sound named "x_shoot1" that isn't used.

Sound	Filename
	x/x_shoot1

Hologram#

Unused Lines#

Name	Filename	Transcript
HOLO_RETRY	holo/tr_holo_retry	Give it another try. Remember to move forward, jump, and while in midair, crouch.
HOLO_RUNSTART	holo/tr_holo_runstart	It helps to have a running start.
HOLO_TRYAGAIN	holo/tr_holo_tryagain	No harm done. Try again.

Obsoleted Sentences#

A variety of voice lines for the Hazard Course remain in the sentence directory, but their contents were moved instead to inside the map files, making them unused.

Name	Filename
HOLO_BREATH	holo/tr_holo_breath
HOLO_DONE	holo/tr_holo_done
HOLO_FALLSHORT	holo/tr_holo_fallshort
HOLO_FANTASTIC	holo/tr_holo_fantastic
HOLO_FLASHLIGHT	holo/tr_holo_flashlight
HOLO_GREATWORK	holo/tr_holo_greatwork
HOLO_JUMPDOWN	holo/tr_holo_jumpdown
HOLO_KEEPTRYING	holo/tr_holo_keeptrying
HOLO_LIGHTOFF	holo/tr_holo_lightoff
HOLO_NICEJOB	holo/tr_holo_nicejob
HOLO_RADIATION	holo/tr_holo_radiation

Unused German Hologram Sounds#

This needs some investigation.
Discuss ideas and findings on the talk page.
Specifically: Check other language versions for similar files.

The holographic assistant from the Hazard Course has unused voice lines in the German version that have no equivalent in the original, and seem to be referring to cut areas seen in an unused texture from Half-Life: Day One, depicting the layout of an early Training Room. The filenames correlate to unused animations in the hologram model (holo.mdl) as well.

Filename	Translation	Note
holointro	Hello, and welcome to the Black Mesa Training Facility. I am your holographic assistant. If you want to see a demonstration of a specific obstacle, just press one of these buttons, and I'll be right there to accompany you through the course.	A shorter intro, which calls it the "Training Facility" instead of Hazard Course, and goes straight into explaining what the buttons do.
holostn1	This is the charging unit for your hazard suit. If your energy level gets too low, just step in front of the next charging station and press the "use" key. Your suit will quickly charge up fully.	Mostly just an alternate take of the used charging station line with minor differences, and without any mention of batteries at the end.
holostn2	The first two jumps are easy. Just press the "jump" key while running. The next two jumps may take some practice. Jump, and while you are in the air, hold the "duck" key. Watch me, and then try it yourself.	A very different version of the part where the player has to do 3 jumps in a row. In the final course, you are also not told to do a duck jump at the end, and the hologram does not demonstrate the jumps.
holostn3	This is another spot where you should practice your duck jump. The key here is to jump and press the "duck" key while you are still in the air.	Another line that has no equivalent in the final version.
holostn4	This is a special jump module, with which you can do very far jumps. Hold both the "duck" key and the "forward" key, and then press the "jump" key to jump forwards. Try the first jump yourself. If you need help, I will demonstrate it on the next platform.	Another very different line, this one implying that there was another jump before the long jump, or even two long jumps (but the hologram would only demonstrate the second one?).
holostn5	I will now show you the long jump. Hold the keys for "ducking" and "forward", and then press "jump". With some practice you will quickly master it.	In the final, the hologram has no lines for demonstrating the long jump.
holostn6	You will find such medkits everywhere on the Black Mesa site. If you want to restore your health, go to a medkit and press the "use" key. But don't forget that a kit can only be used a single time.	Likely an intro to the single-use wall-mounted medical cabinets from earlier iterations of the game, replaced with health chargers in the final version.
holostn7	Now you know how to do your basic movements. You can keep training here, or go through the door to the next training level.	An unused outro for basic movement practice.
holostn8	In the climbing tower you will learn how to climb ladders, break open grates, and use elevators. I will leave you on your own. We'll meet at the exit.	A line intended for the cut "climbing tower", a sign for which can still be found in the game files.
holostn9	Wouldn't you like to try the strength enhancer of your suit now? Break yourself a way through this wall using a crowbar, then you can either continue training in the climbing tower, or go on to the next section.	Mentions breaking through a wall and a "strength enhancer", which might just be a canon way of explaining why Gordon is so strong. The line also shows that the Hazard Course was a lot more open in an earlier version.
holostn10	Almost everything in this room can be pulled, pushed, or broken. You will see...	Sounds like it was intended for a "physics playground" type of area, which is not in the final course.
holostn10a	If you want to pull a box, you have to hole the "use" key while moving backwards. You can push a box by simply moving forward towards the box.	The final course has an area each for learning how to push and pull boxes.
holostn11	If you have caused enough damage, or there is nothing left to break, just go through this door.	Another line intended for the physics playground area.
holostn13	Welcome to the aquatic training center. Jump in, I will wait for you further ahead, around there area where you will need air again.	A vastly different intro to swimming, which still mentions the cut "aquatic training center".
holostn14	You can cure a possible lack of oxygen by swimming to an air bubble and waiting until your health shows the previous level again. As soon as you have caught air you can keep on swimming.	A similar area exists in the final course, but the hologram's line is very different.
holostn15	From here we go back through the main training room and on to the shooting range.	Another line showing that the original course had a more open layout and allowed for backtracking.
holostn16	The shooting range is just around the corner there. First door on the right.	There is an area in the final course where this could be used, but the first door on the right leads to the armory, not the actual range.

Player#

The Player contains a bunch of unused sounds.

Sound	Filename	Note
	player/breathe2	A shortened version of player/breathe1.
	player/fallpain1
	player/fallpain2
	player/geiger4
	player/geiger5
	player/geiger6
	player/jump1	Originally used in the Half-Life Alpha.
	player/jump2	Originally used in the Half-Life Alpha.
	player/jumpland2	Originally used in the Half-Life Alpha.
	player/pain2
	player/pain4
	player/pain5
	player/pain6
	player/pain7

Enemy Sounds#

Alien Grunt#

The Alien Grunt contains one idle sound that was not used in the final game.

Sound	Filename
	agrunt/ag_idle5

Barnacle#

The Barnacle contains a sound that was supposedly going to be used after it died.

Sound	Filename
	barnacle/bcl_tongue1

Boid#

The Boids has a total of 3 unused sounds. This contains 2 sounds that we're presented for the unused alert function, and an unused idle sound.

Sound	Filename
	boid/boid_alert1
	boid/boid_alert2
	boid/boid_idle3

Bullsquid#

There are a total of 4 Bullsquid sounds unused in the final game.

Sound	Filename
	bullchicken/bc_acid2
	bullchicken/bc_attack1
	bullchicken/bc_bite1
	bullchicken/bc_spithit3

Gargantua#

The Gargantua contains several unused sounds. Although, some of these sound do play in the game, they only play in scripted scenes, not from the Gargantua itself, as it doesnt make a sound when alerted.

Sound	Filename	Note
	garg/gar_alert1	Only used in scripted scenes. This sound doesn't play from the entity itself.
	garg/gar_alert2	Only used in scripted scenes. This sound doesn't play from the entity itself.
	garg/gar_alert3	Only used in scripted scenes. This sound doesn't play from the entity itself.
	garg/gar_die1
	garg/gar_die2
	garg/gar_idle1	Only used in scripted scenes. This sound doesn't play from the entity itself.
	garg/gar_idle2	Only used in scripted scenes. This sound doesn't play from the entity itself.
	garg/gar_idle3
	garg/gar_idle4
	garg/gar_idle5

Headcrab#

The Headcrab has a total of 2 unused sounds. 1 alert sound, and 2 idle sounds.

Sound	Filename
	headcrab/hc_alert2
	headcrab/hc_idle4
	headcrab/hc_idle5

Houndeye#

There are a total of 4 Houndeye sounds unused in the final game.

Sound	Filename
	houndeye/he_attack2
	houndeye/he_hunt4
	houndeye/he_idle4
	houndeye/he_pain2

Tentacle#

One sound is played only in a scripted scene.

Sound	Filename	Note
	tentacle/te_alert1
	tentacle/te_alert2
	tentacle/te_flies1	Same as ambience/flies.
	tentacle/te_search1
	tentacle/te_search2
	tentacle/te_squirm2	Same as ambience/squirm2.
	tentacle/te_swing1
	tentacle/te_swing2	Only used in a scripted scene in Office Complex. This sound doesn't play from the entity itself.

Other Sound Effects#

Ambience#

There are several ambience sounds that are unused in the final game. A lot of them are mainly sounds that go under the prefix "alien". Some of these sounds were eventually used in Half-Life: Opposing Force.

Sound	Filename	Note
	ambience/_comma
	ambience/alien_chatter
	ambience/alien_hollow
	ambience/alien_purrmachine
	ambience/alien_twow
	ambience/alien_zonerator	Used in Opposing Force.
	ambience/alienclicker1	Used in Opposing Force.
	ambience/alienfazzle1	Used in Opposing Force.
	ambience/alienvalve1	Same as ambience/alienvalve2.
	ambience/biotone
	ambience/burning2
	ambience/industrial3
	ambience/labgear
	ambience/labmoan	Heard in an older build of Half-Life in the chapter Unforeseen Consequences in a video file named "sewer.mpg".
	ambience/littlemachine
	ambience/sandfall2
	ambience/squeeks1
	ambience/squirm2	Same as tentacle/te_squirm2.
	ambience/squitch2	Same as ambience/squitch.
	ambience/tankdrivein1
	ambience/tankidle1
	ambience/the_horror4
	ambience/truck1
	ambience/truck2	Used in Opposing Force.
	ambience/turretrot2
	ambience/warn2	Used in Opposing Force.

Ambience Variations#

Due to the workings of the sentence system, a sentence with the same ID as another will become unable to be played in-game. Either due to error or intentional dummying-out, this leaves three random "wild" outdoor ambience sequences unplayable.

Sound	Name	Sentence
	WILD9	ambience/des_wind1(v40 p105)
	WILD10	ambience/des_wind2(v40 p98)
	WILD11	ambience/des_wind3(v40 p103)

Attack Helicopter#

The Attack Helicopter/AH-64 contains three unused sounds, which are 2 rotors and a whine. However, one sound is used in a scripted sequence.

Sound	Filename	Note
	apache/ap_rotor1
	apache/ap_rotor3	Used only once in a scripted sequence in the chapter Black Mesa Inbound.
	apache/ap_whine1

Common Sounds#

There are 3 menu sounds that are only present in the September 1997 build of Half-Life.

Sound	Filename	Note
	common/bodydrop1
	common/bodydrop2
	common/menu1	Originally used in the Half-Life Alpha.
	common/menu2	Originally used in the Half-Life Alpha.
	common/menu3	Originally used in the Half-Life Alpha.

Debris#

There are a total of 10 debris sounds unused in the final game. One is used in a scripted scene.

Sound	Filename	Note
	debris/beamstart4
	debris/beamstart5
	debris/beamstart6
	debris/beamstart11
	debris/bustcrate3
	debris/glass4
	debris/metal4
	debris/metal5	Only used in a scripted scene in Surface Tension.
	debris/metal6
	debris/wood4

Doors#

There is 1 standard door sound, and 3 unused alien door sounds in the files. This may have been becuase they didnt have enough time to develop Xen in the game.

Sound	Filename	Note
	doors/aliendoor1
	doors/aliendoor2
	doors/aliendoor4	Same as doors/aliendoor5, but with a different dynamic.
	doors/doorstop1	Used in Opposing Force.

Fans#

There are on and off sounds that go unused.

Sound	Filename
	fans/fan1off
	fans/fan1on
	fans/fan2off
	fans/fan2on
	fans/fan3off
	fans/fan3on
	fans/fan4off
	fans/fan4on
	fans/fan5off
	fans/fan5on

Hassault Weapon#

The cut Hassault enemy has a full set of sounds related to his gun that go unused.

Sound	Filename
	hassault/hw_gun4
	hassault/hw_shoot1
	hassault/hw_shoot2
	hassault/hw_shoot3
	hassault/hw_spin
	hassault/hw_spindown
	hassault/hw_spinup

Strangely enough, hw_shoot1 is used for when an Alien Slave uses its range attack.

Items#

Several unused item sounds exist.

Sound	Filename	Note
	items/airtank1	Likely meant for the cut Oxygen Tank item. It is used once in the chapter On A Rail.
	items/ammopickup1	Reused for sound played when picking up a backpack in Team Fortress Classic.
	items/ammopickup2	Reused for sound played when picking up a backpack in Team Fortress Classic.
	items/gunpickup1
	items/gunpickup3
	items/gunpickup4
	items/medshot5	Reused as a sound used for the Medkit weapon in Team Fortress Classic.
	items/smallmedkit2	Lower-quality version of the used Medkit sound.

Platforms#

There are a total of 13 platform sounds unused in the final game.

Sound	Filename	Note
	plats/bigstop2	Used in Opposing Force.
	plats/elevmove3
	plats/platmove1
	plats/platstop1
	plats/rackmove1
	plats/rackstop1
	plats/squeekmove1
	plats/squeekstop1	Used in the PS2 version of Half-Life.
	plats/train1	Silence.
	plats/train2	Silence.
	plats/ttrain3
	plats/ttrain4
	plats/ttrain6

Turret#

There are a total of 6 turret sounds unused in the final game.

Sound	Filename
	turret/tu_active
	turret/tu_active2
	turret/tu_retract
	turret/tu_search
	turret/tu_spindown
	turret/tu_spinup

Weapons#

There are a total of 5 weapons sounds unused in the final game.

Sound	Filename	Note
	weapons/g_bounce4
	weapons/g_bounce5
	weapons/gren_cock1	A slightly slower and lower quality version of the "reloading" type sound heard after firing an SMG grenade.
	weapons/xbow_fly1	Just white noise.
	weapons/xbow_hit2