Black Mesa Announcement SystemQuotes

{{Article|hl1}}
{{QuotePage}}
{{Cleanup}}
The following is a list of '''quotes from the Black Mesa Announcement System'''. Included are also the many cut ''Half-Life'' announcements only found in the file "sentences.txt".

The announcements are generated in real-time from a total of Black Mesa Announcement System/Words|608 separate words, with occasionally blank sound files for pauses between words and notification sounds when needed. The sentences have been reassembled from scratch for the wiki following the lists found in "sentences.txt", along with some announcements not listed in the file. Also included are the notification sounds; in some instances they have a different pitch, which is not reproduced here. 

==''Half-Life''==

'''Location''' sound/vox/

===Sector A Facility|Training Facility (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|TR_A
|three, two, one, deeoo
|Three, two, one.
|FileThree two one.ogg
|-
|TR_B
|deeoo, target, system, deactivated
|Target system deactivated.
|FileTarget system deactivated.ogg
|-
|}

===Sector C Materials Test Labs and Control Facilities|Anomalous Materials Lab, before the incident===

Heard before the Resonance Cascade in the Sector C area of Sector C's Anomalous Materials Test Labs and Control Facilities, before and after boarding the elevator leading to the lower level where the Anti-Mass Spectrometer is located.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C1A0_0
|dadeda, agent, coomer, report, to, topside, tactical, operations, center
|List of minor Black Mesa employees Coomer, report to Topside Tactical Operations Center.
|Fileagent coomer report to topside tactical operations center.ogg
|-
|C1A0_1
|dadeda, inspection, team, to, radioactive, materials, handling, bay
|Inspection team to Radioactive Materials Handling Bay.
|Fileinspection team to radioactive materials handling bay.ogg
|-
|C1A0_2
|dadeda, agent, sixteen, report, to, administration, sub, level, two
|List of minor Black Mesa employees 16, report to Sector D Center|Administration Sub-Level 2.
|Fileagent sixteen report to administration sub level two.ogg
|-
|C1A0_3
|doop, doctor, johnson, please, call, observation, tank, one
|List of minor Black Mesa employees. Johnson, please call Observation Tank 1.
|Filedoctor johnson please call observation tank one.ogg
|-
|C1A0_4
|doop, doctor, west, please, report, to, lambda, reactor, complex
|List of minor Black Mesa employees. West, please report to Sector F Reactor Complex|Lambda Reactor Complex.
|Filedoctor west please report to lambda reactor complex.ogg
|-
|C1A0_5
|doop, doctor, cross, call, seven, two, nine, please
|Gina Cross the scenes|Dr. Cross, call 729 please.
|Filedoctor cross call seven two nine please.ogg
|-
|C1A0_6
|doop, sargeant ''(sic)'', bailey, to, topside, checkpoint, bravo
|Bailey (sergeant)|Sergeant Bailey to Topside Checkpoint Bravo.
|Filesargeant bailey to topside checkpoint bravo.ogg
|-
|C1A0_7
|dadeda, cryogenic, safety, crew, report, status, at, eleven, hundred, please
|Cryogenic Safety Crew, report status at 1100 please.
|Filecryogenic safety crew report status at eleven hundred please.ogg
|-
|C1A0_8
|dadeda, coded, message, for, captain, black, command, and, communication, center
|Coded message for Captain Black, Sector F Command and Communication Center|Command and Communication Center.
|Filecoded message for captain black command and communication center.ogg
|-
|C1A0_9
|dadeda, sector, c, science, personnel, report, to, anomalous, materials, test, lab
|Sector C Black Mesa Science Team|science personnel, report to Anomalous Materials test laboratory.
|Filesector c science personnel report to anomalous materials test lab.ogg
|-
|C1A0_10
|doop, doctor, freeman, to, anomalous, materials, test, lab, immediately
|Gordon Freeman|Dr. Freeman to Anomalous Materials test laboratory immediately.
|Filedoctor freeman to anomalous materials test lab immediately.ogg
|-
|C1A0_11
|bloop, attention, experimental, propulsion, lab, test, fire, in, ninety, minutes
|Attention. Sector D D|Experimental Propulsion Laboratory test fire in 90 minutes.
|Fileattention experimental propulsion lab test fire in ninety minutes.ogg
|-
|C1A0_12
|bloop, hydro, plant, now, operating, at, sixty, percent
|Sector G Hydro Plant|Hydro Plant now operating at 60%.
|Filehydro plant now operating at sixty percent.ogg
|-
|C1A0_13
|bloop, black, mesa, topside, temperature, is, ninety, three, degrees
|Black Mesa topside temperature is 93 degrees.
|Fileblack mesa topside temperature is ninety three degrees.ogg
|-
|C1A0_14
|bloop, launch, officer, reports, alpha, satellite, deploy, is, nominal
|Launch officer reports Alpha Satellite deploy is nominal.
|Filelaunch officer reports alpha satellite deploy is nominal.ogg
|-
|C1A0_15
|bloop, doctor, birdwell, reports, superconducting, interchange, is, activated
|List of minor Black Mesa employees. Birdwell reports superconducting interchange is activated.
|Filedoctor birdwell reports superconducting interchange is activated.ogg
|-
|C1A0_16
|bloop, attention, report, any, security, violation, to, administration, sub, level, one
|Attention. Report any security violation to Administration Sub-Level 1.
|Fileattention report any security violation to administration sub level one.ogg
|-
|C1A0_17
|bloop, attention, service, personnel, please, clear, helicopter, hangar, one
|Attention. Service personnel, please clear Helicopter Hangar 1.
|Fileattention service personnel please clear helicopter hangar one.ogg
|-
|C1A0_18
|bloop, shield, inspection, crew, reports, primary, reactor, nominal
|Shield Inspection Crew reports primary reactor nominal.
|Fileshield inspection crew reports primary reactor nominal.ogg
|-
|C1A0_19
|bloop, transportation, control, reports, all, systems, on, time
|Transportation Control reports all systems on time.
|Filetransportation control reports all systems on time.ogg
|-
|C1A0_20
|dadeda, doctor, victor, report, to, supercooled, laser, lab, please
|List of minor Black Mesa employees. Victor, report to Supercooled Laser Laboratory please.
|Filedoctor victor report to supercooled laser lab please.ogg
|-
|C1A0_21
|dadeda, sargeant ''(sic)'', guthrie, report, to, topside, motorpool, immediately
|List of minor Black Mesa employees Guthrie, report to Topside Motorpool immediately.
|Filesargeant guthrie report to topside motorpool immediately.ogg
|-
|C1A0_22
|deeoo, uranium, shipment, inspection, team, to, sector, d
|Uranium Shipment Inspection Team to Sector D.
|Fileuranium shipment inspection team to sector d.ogg
|-
|C1A0_START
|dadeda, vox_login
|Hello. The Automatic Diagnostic and Announcement System welcomes you to the Black Mesa Research Facility. Remember Have a secure day. ''(Unused; features an early name for the Black Mesa Announcement System.)''
|Filevox login.ogg
|-
|}

===Anomalous Materials Lab, after the incident===

Heard after the Resonance Cascade in the Research area of Sector C's Anomalous Materials Test Labs and Control Facilities, in the corridor leading to the lobby, and when being in the office before entering Sector B, where a Zombie is sitting on a chair.

"sentences.txt" also mentions Sector B's Coolant Reservoir Facility as a location, but it is never visited.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C1A1_0
|bizwarn (3x), warning, high, energy, detonation, detected, in, materials, lab
|Warning. High energy detonation detected in Materials Laboratory.
|Filewarning high energy detonation detected in materials lab.ogg
|-
|C1A1_1
|buzwarn, attention, security, personnel, to, sector, c, immediately
|Attention. Black Mesa Security Force|Security personnel to Sector C immediately.
|Fileattention security personnel to sector c immediately.ogg
|-
|C1A1_2
|buzwarn, warning, unauthorized, biological, forms, detected, in, sector, c
|Warning. Unauthorized biological forms detected in Sector C.
|Filewarning unauthorized biological forms detected in sector c.ogg
|-
|C1A1_3
|buzwarn, warning, unauthorized, biological, forms, detected, in, coolant, maintenance, area
|Warning. Unauthorized biological forms detected in Coolant Maintenance Area.
|Filewarning unauthorized biological forms detected in coolant maintenance area.ogg
|-
|C1A1_4
|bizwarn (3x), any, damage, control, team, to, sector, c, immediately
|Any Damage Control Team to Sector C immediately.
|Fileany damage control team to sector c immediately.ogg
|-
|C1A1_5
|buzwarn, warning, sector, c, elevator, failure, do, not, use
|Warning. Sector C elevator failure. Do not use.
|Filewarning sector c elevator failure do not use.ogg
|-
|C1A1_6
|bizwarn (3x), biohazard, warning, in, sector, b, and, c
|Biohazard warning in Sector B and C.
|Filebiohazard warning in sector b and c.ogg
|-
|C1A1_7
|buzwarn, attention, sector, c, science, personnel, evacuate, area, immediately
|Attention. Sector C science personnel, evacuate area immediately.
|Fileattention sector c science personnel evacuate area immediately.ogg
|-
|C1A1_8
|buzwarn, warning, flooding, detected, on, sub, level, 3, sector, b
|Warning. Flooding detected on Sub-Level 3, Sector B.
|Filewarning flooding detected on sub level 3 sector b.ogg
|-
|C1A1_9
|bizwarn (3x), warning, anomalous, energy, field, detected, in, administration, center
|Warning. Anomalous energy field detected in Administration Center.
|Filewarning anomalous energy field detected in administration center.ogg
|-
|C1A1_10
|deeoo (2x), attention, any, sector, c, science, personnel, please, report, status
|Attention. Any Sector C science personnel, please report status.
|Fileattention any sector c science personnel please report status.ogg
|-
|C1A1_11
|deeoo (2x), attention, sector, c, science, personnel, please, report, status, immediately
|Attention. Sector C science personnel, please report status immediately.
|Fileattention sector c science personnel please report status immediately.ogg
|-
|}

===Sector D Center|Administration Center (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C1A2_0
|deeoo, emergency, cleanup, team, to, biological, waste, processing, plant
|Emergency clean-up team to Biological Waste Processing Plant.
|Fileemergency cleanup team to biological waste processing plant.ogg
|-
|C1A2_1
|buzwarn (2x), attention, administration, personnel, evacuate, sector, d, immediately
|Attention. Administration personnel, evacuate Sector D immediately.
|Fileattention administration personnel evacuate sector d immediately.ogg
|-
|C1A2_2
|deeoo (2x), attention, security, personnel, to, sector, d
|Attention. Security personnel to Sector D.
|Fileattention security personnel to sector d.ogg
|-
|C1A2_3
|deeoo, service, team, check, elevator, one, sector, c
|Service team, check Elevator 1, Sector C.
|Fileservice team check elevator one sector c.ogg
|-
|C1A2_4
|buzwarn (2x), warning, unauthorized, biological, forms, detected, in, ventillation ''(sic)'', system
|Warning. Unauthorized biological forms detected in ventilation system.
|Filewarning unauthorized biological forms detected in ventilation system.ogg
|-
|C1A2_5
|deeoo, lieutenant, backman, and, cleanup, team, to, sub, level, 3
|Backman (security guard)|Lieutenant Backman and clean-up team to Sub-Level 3.
|Filelieutenant backman and cleanup team to sub level 3.ogg
|-
|C1A2_6
|bizwarn (3x), danger, turret, defense, systems, activated, sector, d
|Danger. Turret defense systems activated, Sector D.
|Filedanger turret defense systems activated sector d.ogg
|-
|C1A2_7
|deeoo (2x), security, officer, reports, men, down, in, sector, d, medical, help, required
|Security officer reports men down in Sector D, medical help required.
|Filesecurity officer reports men down in sector d medical help required.ogg
|-
|C1A2_8
|bizwarn (3x), extreme, danger, all, turret, defense, systems, activated, sector, d
|Extreme danger, all turret defense systems activated, Sector D.
|Fileextreme danger all turret defense systems activated sector d.ogg
|-
|C1A2_9
|deeoo, turret, repair, personnel, to, high, security, materials, storage, area
|Turret repair personnel to Sector D Security Materials Storage Area|High Security Materials Storage Area.
|Fileturret repair personnel to high security materials storage area.ogg
|-
|C1A2_10
|deeoo (2x), attention, electric, shock, hazard, detected, in, administration, center
|Attention. Electric shock hazard detected in Administration Center.
|Fileattention electric shock hazard detected in administration center.ogg
|-
|C1A2_11
|buzwarn (2x), security, officer, reports, medical, emergency, administration, center
|Security officer reports medical emergency, Administration Center.
|Filesecurity officer reports medical emergency administration center.ogg
|-
|}

===Sector D Security Materials Storage Area|High Security Materials Storage Area===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C1A3_0
|buzwarn (2x), attention, all, science, personnel, report, topside, for, immediate, questioning
|Attention. All science personnel, report topside for immediate questioning.
|Fileattention all science personnel report topside for immediate questioning.ogg
|-
|C1A3_1
|buzwarn (2x), all, personnel, evacuate, high, security, materials, storage, facility
|All personnel evacuate High Security Materials Storage Facility.
|Fileall personnel evacuate high security materials storage facility.ogg
|-
|C1A3_2
|bizwarn (2x), emergency, uranium, containment, team, to, sector, d
|Emergency Uranium Containment Team to Sector D.
|Fileemergency uranium containment team to sector d.ogg
|-
|C1A3_3
|deeoo, turret, maintenance, team, to, central, command, and, communication, center
|Turret maintenance team to Central Command and Communication Center.
|Fileturret maintenance team to central command and communication center.ogg
|-
|C1A3_4
|buzwarn (2x), military, personnel, prosecute, kilo, india, lima, with, extreme, force
|Military personnel, prosecute Kilo-India-Lima with extreme force.
|Filemilitary personnel prosecute kilo india lima with extreme force.ogg
|-
|C1A3_5
|bizwarn (3x), attention, this, announcement, system, now, under, military, command
|Attention. This announcement system now under Hazardous Environment Combat Unit|military command.
|Fileattention this announcement system now under military command.ogg
|-
|C1A3_6
|buzwarn (2x), search, and, destroy, force, bravo, reports, secondary, objective, terminated
|Search and Destroy Force Bravo reports secondary objective terminated.
|Filesearch and destroy force bravo reports secondary objective terminated.ogg
|-
|C1A3_7
|buzwarn (2x), bravo, force, reports, hotel, sierra, mike, facility, is, secured
|Bravo Force reports Hotel-Sierra-Mike facility is secured.
|Filebravo force reports hotel sierra mike facility is secured.ogg
|-
|C1A3_8
|bizwarn (2x), attention, all, military, personnel, atomic, biological, chemical, alert
|Attention. All military personnel, atomic biological chemical alert.
|Fileattention all military personnel atomic biological chemical alert.ogg
|-
|C1A3_9
|bizwarn (2x), attention, all, military, personnel, extreme, atomic, biological, chemical, alert
|Attention. All military personnel, extreme atomic biological chemical alert.
|Fileattention all military personnel extreme atomic biological chemical alert.ogg
|-
|C1A3_10
|bizwarn (3x), attention, black, mesa, announcement, system, now, under, military, command
|Attention. Black Mesa Announcement System now under military command.
|Fileattention black mesa announcement system now under military command.ogg
|-
|C1A3_warn
|buzwarn (2x), attention, security, lockout, alert, security, door, will, engage
|Attention. Security lockout alert. Security door will engage.
|Fileattention security lockout alert security door will engage.ogg
|-
|C1A3_lock
|bizwarn (2x), security, door, engaged, five, buzwarn, four, buzwarn, three, buzwarn, two, buzwarn, one, buzwarn, lockout, activated
|Security door engaged. Five. Four. Three. Two. One. Lockout activated.
|Filesecurity door engaged five four three two one lockout activated.ogg
|-
|}

===Sector D D|Experimental Propulsion Laboratory (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C1A4_0
|buzwarn (2x), attention, experimental, rocket, test, fire, disengaged
|Attention. Experimental rocket test fire disengaged.
|Fileattention experimental rocket test fire disengaged.ogg
|-
|C1A4_1
|deeoo, repair, crew, report, to, track, control, sector, e
|Repair crew, report to Sector E Control|Track Control, Sector E.
|Filerepair crew report to track control sector e.ogg
|-
|C1A4_2
|deeoo, maintenance, team, blue, check, heat, exchange, coolant, level
|Maintenance Team Blue, check heat exchange coolant level.
|Filemaintenance team blue check heat exchange coolant level.ogg
|-
|C1A4_3
|deeoo, maintenance, team, green, check, voltage, on, cable, seven, two, nine
|Maintenance Team Green, check voltage on Cable 729.
|Filemaintenance team green check voltage on cable seven two nine.ogg
|-
|C1A4_4
|buzwarn (2x), medical, team, to, materials, storage, facility, team, bravo, reports, men, down
|Medical Team to Materials Storage Facility, Team Bravo reports men down.
|Filemedical team to materials storage facility team bravo reports men down.ogg
|-
|C1A4_5
|buzwarn (2x), alpha, force, move, out, science, personnel, resistance, extreme
|Alpha Force move out, science personnel resistance extreme.
|Filealpha force move out science personnel resistance extreme.ogg
|-
|C1A4_6
|buzwarn (2x), attention, all, black, mesa, security, personnel, wanted, for, immediate, questioning
|Attention. All Black Mesa security personnel wanted for immediate questioning.
|Fileattention all black mesa security personnel wanted for immediate questioning.ogg
|-
|C1A4_7
|buzwarn (2x), attention, gordon, freeman, report, to, military, personnel, for, immediate, security, check
|Attention. Gordon Freeman, report to military personnel for immediate security check.
|Fileattention gordon freeman report to military personnel for immediate security check.ogg
|-
|C1A4_8
|buzwarn (2x), warning, hostile, biological, forms, detected, in, track, control, sector, e
|Warning. Hostile biological forms detected in Track Control, Sector E.
|Filewarning hostile biological forms detected in track control sector e.ogg
|-
|FUEL_OFF
|fuel, and, power, must, be, engaged, to, activate, rocket, test, fire
|Fuel and power must be engaged to activate rocket test fire.
|Filefuel and power must be engaged to activate rocket test fire.ogg
|-
|}

===Sector E Control|Track Control===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C2A1_0
|buzwarn (2x), warning, track, power, failure, check, lower, level, power, plant
|Warning. Track power failure. Check lower level power plant. ''(Unused)''
|Filewarning track power failure check lower level power plant.ogg
|-
|C2A1_1
|deeoo, maintenance, team, yellow, please, service, relay, three, hundred, ninety, four
|Maintenance Team Yellow, please service Relay 394. ''(Unused)''
|Filemaintenance team yellow please service relay three hundred ninety four.ogg
|-
|C2A1_2
|dadeda, attention, gordon, freeman, report, to, military, personnel, for, immediate, security, check
|Attention. Gordon Freeman, report to military personnel for immediate security check. ''(Unused)''
|Fileattention gordon freeman report to military personnel for immediate security check.ogg
|-
|C2A1_3
|buzwarn (2x), delta, team, reports, launch, control, secured
|Delta Team reports Sector E Altitude Launch Center|Launch Control secured. ''(Unused)''
|Filedelta team reports launch control secured.ogg
|-
|C2A1_4
|bizwarn (3x), danger, turret, defense, systems, activated, silo, e
|Danger. Turret defense systems activated, Sector E E|Silo E. ''(Unused)''
|Filedanger turret defense systems activated silo e.ogg
|-
|C2A1_5
|deeoo, sector, e, track, control, please, report, status
|Sector E Track Control, please report status. ''(Unused)''
|Filesector e track control please report status.ogg
|-
|C2A1_6
|buzwarn (2x), echo, force, reports, perimeter, breach, sector, e
|Echo Force reports perimeter breach, Sector E. ''(Unused)''
|Fileecho force reports perimeter breach sector e.ogg
|-
|C2A1_7
|buzwarn (2x), attention, search, and, destroy, force, go, to, code, three, eliminate, all, biological, forms
|Attention. Search and Destroy Force go to Code 3. Eliminate all biological forms. ''(Unused)''
|Fileattention search and destroy force go to code three eliminate all biological forms.ogg
|-
|C2A1_8
|bizwarn, danger, unauthorized, detonation, detected, in, experimental, propulsion, laboratory
|Danger. Unauthorized detonation detected in Experimental Propulsion Laboratory. ''(Unused)''
|Filedanger unauthorized detonation detected in experimental propulsion laboratory.ogg
|-
|POWER_OFF
|main, power, is, not, on
|Main power is not on. ''(The only one of the area to be used, it is heard at the Gargantua scene, only if the tram is approached before power is restored.)''
|Filemain power is not on.ogg
|-
|POWER_ON
|main, power, is, on
|Main power is on. ''(Unused)''
|Filemain power is on.ogg
|-
|}

===Sector E Altitude Launch Center|High Altitude Launch Center (unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C2A2_0
|buzwarn (2x), attention, clear, silo, e, launch, area, immediately
|Attention. Clear Silo E launch area immediately.
|Fileattention clear silo e launch area immediately.ogg
|-
|C2A2_1
|deeoo, containment, inspection, team, to, advanced, biological, research, laboratory
|Containment Inspection Team to Advanced Biological Research Laboratory.
|Filecontainment inspection team to advanced biological research laboratory.ogg
|-
|C2A2_2
|buzwarn (2x), medical, team, to, sector, e, echo, team, has, men, down
|Medical team to Sector E, Echo Team has men down.
|Filemedical team to sector e echo team has men down.ogg
|-
|C2A2_3
|buzwarn (2x), alert, military, personnel, authorized, to, prosecute, gordon, freeman, with, extreme, force
|Alert. Military personnel, authorized to prosecute Gordon Freeman with extreme force.
|Filealert military personnel authorized to prosecute gordon freeman with extreme force.ogg
|-
|C2A2_3
|buzwarn (2x), alert, military, personnel, you, are, authorized, to, shoot, the, renegade, on, sight
|Alert. Military personnel, you are authorized to shoot the renegade on sight.
|Filealert military personnel you are authorized to shoot the renegade on sight.ogg
|-
|C2A2_4
|buzwarn (2x), alert, squad, in, silo, e, freeman, may, be, operating, inside, your, perimeter
|Alert. Squad in Silo E, Freeman may be operating inside your perimeter.
|Filealert squad in silo e freeman may be operating inside your perimeter.ogg
|-
|C2A2_5
|deeoo (2x), launch, control, train, activity, detected
|Launch Control train activity detected.
|Filelaunch control train activity detected.ogg
|-
|C2A2_6
|buzwarn (2x), medical, team, to, sector, e, echo, team, squad, failed, to, reach, checkpoint
|Medical team to Sector E, Echo Team squad failed to reach checkpoint.
|Filemedical team to sector e echo team squad failed to reach checkpoint.ogg
|-
|C2A2_7
|deeoo (2x), satellite, rocket, loading, bay, reports, status, green
|Satellite Rocket Loading Bay reports status green.
|Filesatellite rocket loading bay reports status green.ogg
|-
|C2A2_launch
|deeoo (3x), satellite, launch, system, activated, five, deeoo, four, deeoo, three, deeoo, two, deeoo, one, deeoo, launch, is, go
|Satellite launch system activated. Five. Four. Three. Two. One. Launch is go.
|Filesatellite launch system activated five four three two one launch is go.ogg
|-
|}

===Advanced Biological Research Lab and Biological Waste Processing Plant (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C2A4_0
|buzwarn (2x), warning, emergency, containment, system, activated
|Warning. Emergency containment system activated.
|Filewarning emergency containment system activated.ogg
|-
|C2A4_1
|bizwarn (2x), alert, biological, containment, breach, detected
|Alert. Biological containment breach detected.
|Filealert biological containment breach detected.ogg
|-
|C2A4_2
|bizwarn (2x), warning, biological, sterilization, system, activated
|Warning. Biological sterilization system activated.
|Filewarning biological sterilization system activated.ogg
|-
|C2A4_3
|buzwarn (2x), attention, hostile, alien, military, force, detected, advanced, biological, research, laboratory
|Attention. Hostile alien military force detected, Advanced Biological Research Laboratory.
|Fileattention hostile alien military force detected advanced biological research laboratory.ogg
|-
|C2A4_4
|buzwarn (2x), search, and, destroy, force, reports, back, up, required, engaged, with, extreme, resistance
|Search and Destroy Force reports backup required, engaged with extreme resistance.
|Filesearch and destroy force reports backup required engaged with extreme resistance.ogg
|-
|C2A4_5
|buzwarn (2x), topside, containment, force, alert, hostile, alien, military, force, detected
|Topside Containment Force alert, hostile alien military force detected.
|Filetopside containment force alert hostile alien military force detected.ogg
|-
|C2A4_6
|deeoo (2x), high, power, laser, status, is, green
|High Power Laser status is green.
|Filehigh power laser status is green.ogg
|-
|C2A4_7
|bizwarn (2x), alien, containment, system, failure, use, sterilization, chamber
|Alien containment system failure, use sterilization chamber.
|Filealien containment system failure use sterilization chamber.ogg
|-
|C2A4_8
|bizwarn (2x), attention, all, topside, military, personnel, clear, helicopter, hangar, four
|Attention. All topside military personnel, clear Helicopter Hangar 4.
|Fileattention all topside military personnel clear helicopter hangar four.ogg
|-
|C2A4_9
|bizwarn (2x), alien, breach, topside, checkpoint, alpha, checkpoint, delta
|Alien breach, Topside Checkpoint Alpha, Checkpoint Delta.
|Filealien breach topside checkpoint alpha checkpoint delta.ogg
|-
|C2A4_10
|buzwarn (2x), alert, topside, containment, force, use, any, force, to, prosecute, gordon, freeman, you, are, authorized, to, shoot, on, sight
|Alert. Topside Containment Force, use any force to prosecute Gordon Freeman. You are authorized to shoot on sight.
|Filealert topside containment force use any force to prosecute gordon freeman you are authorized to shoot on sight.ogg
|-
|C2A4_11
|buzwarn (2x), alert, topside, containment, force, freeman, may, approach, your, perimeter
|Alert. Topside Containment Force, Freeman may approach your perimeter.
|Filealert topside containment force freeman may approach your perimeter.ogg
|-
|C2A4_12
|gordon, all, science, personnel, will, be, terminated, until, you, surrender
|Gordon, all science personnel will be terminated until you surrender. (in the "sentences.txt" of ''Half-Life Day One'', "C3A2_2" is an alternate version of this sentence)
|Filegordon all science personnel will be terminated until you surrender.ogg
|-
|C2A4_ster
|bizwarn (2x), sterilization, system, activated
|Sterilization system activated.
|Filesterilization system activated.ogg
|}

===Sector F Command and Communication Center|Central Command and Communication Center (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C3A1_0
|buzwarn (2x), warning, primary, antenna, failure, detected
|Warning. Primary Antenna failure detected.
|Filewarning primary antenna failure detected.ogg
|-
|C3A1_1
|buzwarn (2x), clear, topside, motorpool, for, emergency, medical, helicopter
|Clear Topside Motorpool for emergency medical helicopter.
|Fileclear topside motorpool for emergency medical helicopter.ogg
|-
|C3A1_2
|buzwarn (2x), warning, topside, armory, security, bypass, detected, 
|Warning. Topside Armory security bypass detected. 
|Filewarning topside armory security bypass detected.ogg
|-
|C3A1_3
|bizwarn (2x), warning, radiation, leak, detected, in, primary, antenna, area
|Warning. Radiation leak detected in Primary Antenna area.
|Filewarning radiation leak detected in primary antenna area.ogg
|-
|C3A1_4
|buzwarn (2x), search, and, destroy, force, kilo, central, command, reports, hostile, alien, force, inside, perimeter
|Search and Destroy Force Kilo, Central Command reports hostile alien force inside perimeter.
|Filesearch and destroy force kilo central command reports hostile alien force inside perimeter.ogg
|-
|C3A1_5
|buzwarn (2x), message, for, gordon, freeman, you, will, not, escape, this, time
|Message for Gordon Freeman, you will not escape this time.
|Filemessage for gordon freeman you will not escape this time.ogg
|-
|C3A1_6
|buzwarn (2x), attention, all, units, renegade, freeman, is, now, your, primary, target
|Attention. All units, renegade Freeman is now your primary target. ''(The word "Unit" doesn't exist in the sound files, it was roughly recreated for the wiki.)''
|Fileattention all units renegade freeman is now your primary target.ogg
|-
|C3A1_7
|buzwarn (2x), alert, remaining, containment, force, freeman, may, have, experimental, weapon
|Alert. Remaining Containment Force, Freeman may have experimental weapon.
|Filealert remaining containment force freeman may have experimental weapon.ogg
|-
|C3A1_8
|buzwarn (2x), all, personnel, evacuate, lambda, complex, extreme, dimensional, malfunction, detected
|All personnel evacuate Lambda Complex, extreme dimensional malfunction detected.
|Fileall personnel evacuate lambda complex extreme dimensional malfunction detected.ogg
|-
|C3A1_9
|bizwarn (2x), fire, control, team, to, topside, armory, checkpoint, delta, topside, hydro, plant
|Fire Control Team to Topside Armory, Checkpoint Delta, Topside Hydro Plant.
|Filefire control team to topside armory checkpoint delta topside hydro plant.ogg
|-
|}

===Sector F Reactor Coolant System|Lambda Reactor Coolant System===

Heard in the hub of the Lambda Reactor Coolant System of Sector F's Lambda Reactor Complex. "sentences.txt" also mentions as a location the unidentified Radioactive Materials Handling Bay, also mentioned in a message heard in  C, Anomalous Materials Lab|Sector C before the incident.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C3A2_0
|bizwarn (2x), warning, cross, dimensional, power, field, activity, detected
|Warning. Cross-dimensional power field activity detected.
|Filewarning cross dimensional power field activity detected.ogg
|-
|C3A2_1
|bizwarn (2x), warning, unauthorized, biological, force, detected, in, cross, dimensional, power, field
|Warning. Unauthorized biological force detected in cross-dimensional power field.
|Filewarning unauthorized biological force detected in cross dimensional power field.ogg
|-
|C3A2_2
|buzwarn (2x), all, personnel, evacuate, lambda, complex, extreme, dimensional, malfunction, detected
|All personnel evacuate Lambda Complex, extreme dimensional malfunction detected. ''(Same as "C3A1_8")''
|Fileall personnel evacuate lambda complex extreme dimensional malfunction detected.ogg
|-
|C3A2_2 ''(Day One)''
|buzwarn (2x), gordon, all, science, personnel, will, be, terminated, until, you, evacuate, that, area
|Gordon, all science personnel will be terminated until you evacuate that area. ''(An alternate version of "C2A4_12", this sentence is found instead of the final one in the "sentences.txt" of Half-Life Day One)''
|Filegordon all science personnel will be terminated until you evacuate that area.ogg
|-
|C3A2_3
|bizwarn (3x), unauthorized, activity, detected, in, main, reactor, core, 
|Unauthorized activity detected in Main Reactor Core. 
|Fileunauthorized activity detected in main reactor core.ogg
|-
|C3A2_4
|bizwarn (2x), danger, high, energy, exchange, detected, in, radioactive, materials, handling, bay
|Danger. High energy exchange detected in Radioactive Materials Handling Bay.
|Filedanger high energy exchange detected in radioactive materials handling bay.ogg
|-
|C3A2_5
|bizwarn (2x), biological, force, detected, in, primary, coolant, system
|Biological force detected in Primary Coolant System.
|Filebiological force detected in primary coolant system.ogg
|-
|C3A2_6
|bizwarn (2x), lambda, complex, reports, dimensional, contamination
|Lambda Complex reports dimensional contamination.
|Filelambda complex reports dimensional contamination.ogg
|-
|C3A2_7
|bizwarn (2x), lambda, complex, reports, dimensional, containment, system, failure
|Lambda Complex reports dimensional containment system failure.
|Filelambda complex reports dimensional containment system failure.ogg
|-
|}

===Sector F Reactor Complex|Lambda Reactor Complex (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C3A2_target
|bloop (2x), satellite, target, system, engaged
|Satellite target system engaged.
|Filesatellite target system engaged.ogg
|-
|C3A2_portal
|bizwarn (3x), warning, cross, dimensional, portal, device, power, level, is, one, hundred, twenty, percent
|Warning. Cross-Dimensional Portal Device power level is 120%.
|Filewarning cross dimensional portal device power level is one hundred twenty percent.ogg
|-
|C3A2_core
|bizwarn (3x), attention, lambda, complex, personnel, primary, core, activated
|Attention. Lambda Complex personnel, Primary Core activated.
|Fileattention lambda complex personnel primary core activated.ogg
|-
|}

===Other areas===

Sentence prefix "C2A3" is featured in "sentences.txt" and presents the related areas as "silent", i.e. without any planned announcements. The areas include the unknown Observation Tank 1 mentioned in a message heard in  C, Anomalous Materials Lab|Sector C before the incident and the cryogenic facility visited in the Sector E industrial area|unnamed industrial area set between the Materials Transport and the Biological Waste Processing Plant.

Another prefix, "C2A5", presents the following silent topside areas the unknown Tactical Operations Center mentioned in a message heard in Sector C before the incident, the Topside Motorpool and its Topside Armory, barracks and hangars, the Topside Hydro Plant, and the unknown Topside Checkpoints Alpha (to be mentioned in the Advanced Biological Research Lab), Bravo (mentioned in Sector C) and Delta (to be mentioned in the Advanced Biological Research Lab and Central Command and Communication Center). These unknown locations either still appear in-game in some form albeit without being clearly identified or were simply cut.

==''Half-Life Opposing Force''==

'''Location''' sound/vox/

===Black Mesa Medical Lab===

The sentence names are the same as those used in the first part of the  C, before the incident|Anomalous Materials Test Labs and Control Facilities in ''Half-Life''.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|C1A0_0
|bloop, immediate, medical, attention, required, in, sector, twenty, seven
|Immediate medical attention required in Sector 27.
|Fileimmediate medical attention required in sector twenty seven.ogg
|-
|C1A0_1
|doop, operations, personnel, report, to, emergency, control, zone, for, contamination, cleanup, alpha, seven, access, required
|Operations personnel, report to Emergency Control Zone for contamination clean-up, Alpha 7 access required.
|Fileoperations personnel report to emergency control zone for contamination cleanup alpha seven access required.ogg
|-
|C1A0_2
|attention, supply, team, required, in, lower, maintenance, chamber, sub, sector, b
|Attention. Supply Team required in Lower Maintenance Chamber Sub-Sector B.
|Fileattention supply team required in lower maintenance chamber sub sector b.ogg
|-
|C1A0_3
|doop, security, breach, detected, in, silo, thirty, two
|Security breach detected in Silo 32.
|Filesecurity breach detected in silo thirty two.ogg
|-
|C1A0_4
|warning, extreme, radiation, leak, detected, in, reactor, core, eight, time, to, reach, minimum, safe, distance, fourteen, minutes
|Warning. Extreme radiation leak detected in Reactor Core 8. Time to reach minimum safe distance 14 minutes.
|Filewarning extreme radiation leak detected in reactor core eight time to reach minimum safe distance fourteen minutes.ogg
|-
|C1A0_5
|dadeda, doctor, guthrie, report, to, inspection, lab, six, immediately
|Guthrie|Dr. Guthrie, report to Inspection Laboratory 6 immediately.
|Filedoctor guthrie report to inspection lab six immediately.ogg
|-
|C1A0_6
|attention, doctor, freeman, report, to, research, administration, center, for, questioning
|Attention. Dr. Freeman, report to Research Administration Center for questioning.
|Fileattention doctor freeman report to research administration center for questioning.ogg
|-
|C1A0_7
|deeoo, remaining, science, personnel, report, to, medical, lab, six, for, radiation, exposure, inspection
|Remaining science personnel, report to Medical Laboratory 6 for radiation exposure inspection.
|Fileremaining science personnel report to medical lab six for radiation exposure inspection.ogg
|-
|C1A0_8
|warning, severe, damage, detected, in, ventillation ''(sic)'', systems, under, research, lab, two, evacuate, area, immediately
|Warning. Severe damage detected in ventilation systems under Research Laboratory 2, evacuate area immediately.
|Filewarning severe damage detected in ventilation systems under research lab two evacuate area immediately.ogg
|-
|}

==''Half-Life Blue Shift''==

'''Location''' sound/vox/

===Sector G G Main Access Lift|Sector G Main Access Lift===

Heard at the start of the game, when the elevator fails.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|VOX_ELEV1
|deeoo, warning, main, power, failure, in, levels, 3, 5, and, 8, deeoo
|Warning. Main power failure in Levels 3, 5 and 8.
|FileWarning main power failure in levels 3 5 and 8.ogg
|-
|VOX_ELEV2
|deeoo, warning, extreme, electromagnetic, field, hazard, in, sector, c, deeoo
|Warning. Extreme electromagnetic field hazard in Sector C.
|FileWarning extreme electromagnetic field hazard in sector c.ogg
|-
|}

==''Half-Life Decay''==

'''Location''' sound/vox/

===Sector C Materials Operations Center|Anomalous Materials Operations Center===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|HT01_0
|deeoo, attention, doctor, freeman, report, to, anomalous, materials, laboratory
|Attention. Dr. Freeman, report to Anomalous Materials laboratory.
|Fileattention doctor freeman report to anomalous materials laboratory.ogg
|-
|HT01_1
|deeoo, doctor, cross, and, doctor, green, you, are, required, in, the, anomalous, materials, operations, center
|Dr. Cross and Dr. Green, you are required in the Anomalous Materials Operations Center.
|Filedoctor cross and doctor green you are required in the anomalous materials operations center.ogg
|-
|HT01_2
|deeoo, all, security, personnel, check, clearance, with, inspector, white
|All security personnel, check clearance with Inspector White.
|Fileall security personnel check clearance with inspector white.ogg
|-
|HT01_3
|deeoo, attention, science, team, decontamination, required, in, anomalous, materials, laboratory
|Attention. Science Team, decontamination required in Anomalous Materials laboratory.
|Fileattention science team decontamination required in anomalous materials laboratory.ogg
|-
|HT01_4
|dadeda, attention, topside, leave, has, not, been, authorized, with, administration
|Attention. Topside leave has not been authorized with administration.
|Fileattention topside leave has not been authorized with administration.ogg
|-
|HT01_5
|buzwarn (2x), warning, do, not, deactivate, containment, field, systems
|Warning. Do not deactivate containment field systems. ''("deactivate" was specially made for Decay from the Half-Life file "deactivated")''
|Filewarning do not deactivate containment field systems.ogg
|-
|HT01_6
|bloop, announcement, topside, satellite, communication, dish, has, been, disengaged
|Announcement. Topside satellite communication dish has been disengaged.
|Fileannouncement topside satellite communication dish has been disengaged.ogg
|-
|HT01_7
|dadeda, laser, containment, system, access, is, forbidden, to, inspection, personnel
|Laser containment system access is forbidden to inspection personnel.
|Filelaser containment system access is forbidden to inspection personnel.ogg
|-
|HT01_8
|bloop, announcement, waste, disposal, control, will, proceed, at, one, thirty, five
|Announcement. Waste disposal control will proceed at 135.
|Fileannouncement waste disposal control will proceed at one thirty five.ogg
|-
|HT01_9
|dadeda, anomalous, materials, test, not, open, to, unauthorized, personnel
|Anomalous Materials test not open to unauthorized personnel.
|Fileanomalous materials test not open to unauthorized personnel.ogg
|-
|CROSSDOOR
|doctor, cross, access, granted
|Dr. Cross, access granted. ''(Unused)''
|Filedoctor cross access granted.ogg
|-
|GREENDOOR
|doctor, green, access, granted
|Dr. Green, access granted. ''(Unused)''
|Filedoctor green access granted.ogg
|-
|GREENDOOR2
|doctor, green, access, denied
|Dr. Green, access denied. ''(Unused)''
|Filedoctor green access denied.ogg
|-
|}

===Sector A Facility|Training Facility===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|N/A
|security, breach, detected
|Security breach detected.
|Filesecurity breach detected.ogg
|-
|N/A
|security, override, activated
|Security override activated.
|Filesecurity override activated.ogg
|-
|N/A
|security, override, deactivated
|Security override deactivated.
|Filesecurity override deactivated.ogg
|-
|N/A
|secure, access, corridor, disengaged
|Secure access corridor disengaged.
|Filesecure access corridor disengaged.ogg
|-
|}

===Level 3 Dormitories===

Some announcements have a lower pitch, not reproduced here.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|HT05_0
|buzwarn (2x), attention, all, science, personnel, evacuate, level, three, immediately
|Attention. All science personnel evacuate Level 3 immediately.
|Fileattention all science personnel evacuate level three immediately.ogg
|-
|HT05_1
|bizwarn (3x), attention, this, announcement, system, now, under, military, command
|Attention. This announcement system now under military command. ''(Same as "C1A3_5")''
|Fileattention this announcement system now under military command.ogg
|-
|HT05_2
|bizwarn (3x), attention, black, mesa, announcement, system, now, under, military, command
|Attention. Black Mesa Announcement System now under military command. ''(Same as "C1A3_10")''
|Fileattention black mesa announcement system now under military command.ogg
|-
|HT05_3
|bizwarn (3x), attention, science, team, report, to, nearest, security, checkpoint, immediately
|Attention. Science Team, report to nearest security checkpoint immediately.
|Fileattention science team report to nearest security checkpoint immediately.ogg
|-
|HT05_4
|bizwarn (2x), attention, all, military, personnel, intruder, detected, in, level, three
|Attention. All military personnel, intruder detected in Level 3.
|Fileattention all military personnel intruder detected in level three.ogg
|-
|HT05_5
|buzwarn (2x), attention, all, science, personnel, report, to, north, transportation, platform, immediately
|Attention. All science personnel, report to north transportation platform immediately.
|Fileattention all science personnel report to north transportation platform immediately.ogg
|-
|HT05_6
|buzwarn (2x), warning, unauthorized, biological, forms, detected, in, ventillation ''(sic)'', system
|Warning. Unauthorized biological forms detected in ventilation system. ''(Same as "C1A2_4")''
|Filewarning unauthorized biological forms detected in ventilation system.ogg
|-
|HT05_7
|buzwarn (2x), charlie, team, reports, bravo, foxtrot, johnson, facility, is, secured
|Charlie Team reports Bravo-Foxtrot-Johnson facility is secured.
|Filecharlie team reports bravo foxtrot johnson facility is secured.ogg
|-
|HT05_8
|buzwarn (2x), search, and, destroy, squad, alpha, reports, secondary, objective, terminated
|Search and Destroy Squad Alpha, reports secondary objective terminated.
|Filesearch and destroy squad alpha reports secondary objective terminated.ogg
|-
|}

==General announcements==

'''Location''' sound/vox/

Most appear only in ''Half-Life'', although the majority is never used.

===Countdown (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|CTR20
|twenty, seconds, remaining
|Twenty seconds remaining.
|Filetwenty seconds remaining vox.ogg
|-
|CTR19
|nineteen
|Nineteen.
|Filenineteen vox.ogg
|-
|CTR18
|eighteen
|Eighteen.
|Fileeighteen vox.ogg
|-
|CTR17
|seventeen
|Seventeen.
|Fileseventeen vox.ogg
|-
|CTR16
|sixteen
|Sixteen.
|Filesixteen vox.ogg
|-
|CTR15
|fifteen, seconds, remaining
|Fifteen seconds remaining.
|Filefifteen seconds remaining vox.ogg
|-
|CTR14
|fourteen
|Fourteen.
|Filefourteen vox.ogg
|-
|CTR13
|thirteen
|Thirteen.
|Filethirteen vox.ogg
|-
|CTR12
|twelve
|Twelve.
|Filetwelve vox.ogg
|-
|CTR11
|eleven
|Eleven.
|Fileeleven vox.ogg
|-
|CTR10
|ten, seconds, remaining
|Ten seconds remaining.
|Fileten seconds remaining vox.ogg
|-
|CTR9
|nine
|Nine.
|Filenine vox.ogg
|-
|CTR8
|eight
|Eeight.
|Fileeight vox.ogg
|-
|CTR7
|seven
|Seven.
|Fileseven vox.ogg
|-
|CTR6
|six
|Six.
|Filesix vox.ogg
|-
|CTR5
|five, seconds, remaining
|Five seconds remaining.
|Filefive seconds remaining vox.ogg
|-
|CTR4
|four
|Four.
|Filefour vox.ogg
|-
|CTR3
|three, seconds
|Three seconds.
|Filethree seconds vox.ogg
|-
|CTR2
|two
|Two.
|Filetwo vox.ogg
|-
|CTR1
|one, second
|One second.
|Fileone second vox.ogg
|-
|CTR0
|zero
|Zero.
|Filezero vox.ogg
|-
|}

===Dangers (Unused)===

====Biohazard danger====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|DB0
|danger, liquid, biohazard, leak, in, immediate, area
|Danger. Liquid biohazard leak in immediate area.
|Filedanger liquid biohazard leak in immediate area.ogg
|-
|DB1
|danger, coolant, leak, severe, biohazard, now, in, this, area
|Danger. Coolant leak. Severe biohazard now in this area.
|Filedanger coolant leak severe biohazard now in this area.ogg
|-
|DB2
|danger, liquid, biohazard, released, evacuate, area
|Danger. Liquid biohazard released. Evacuate area.
|Filedanger liquid biohazard released evacuate area.ogg
|-
|DB3
|danger, biohazard, detected, in, immediate, area
|Danger. Biohazard detected in immediate area.
|Filedanger biohazard detected in immediate area.ogg
|-
|}

====Chemical danger====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|DC0
|danger, chemical, leak, area, now, a, high, health, hazard
|Danger. Chemical leak. Area now a high health hazard.
|Filedanger chemical leak area now a high health hazard.ogg
|-
|DC1
|danger, chemical, coolant, leak, health, hazard, zone
|Danger. Chemical coolant leak. Health hazard zone.
|Filedanger chemical coolant leak health hazard zone.ogg
|-
|DC2
|danger, chemical, containment, breach, all, personnel, evacuate, this, area
|Danger. Chemical containment breach. All personnel evacuate this area.
|Filedanger chemical containment breach all personnel evacuate this area.ogg
|-
|DC3
|danger, supercooled, chemical, leak
|Danger. Supercooled chemical leak.
|Filedanger supercooled chemical leak.ogg
|-
|DC4
|danger, supercooled, helium, leak
|Danger. Supercooled helium leak.
|Filedanger supercooled helium leak.ogg
|-
|}

====Radiation danger====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|DR0
|danger, radiation, leak, detected
|Danger. Radiation leak detected.
|Filedanger radiation leak detected.ogg
|-
|DR1
|danger, radiation, hazard, detected
|Danger. Radiation hazard detected.
|Filedanger radiation hazard detected.ogg
|-
|DR2
|danger, high, radiation, level, detected
|Danger. High radiation level detected.
|Filedanger high radiation level detected.ogg
|-
|DR3
|danger, severe, radiation, hazard, evacuate, area, immediately
|Danger. Severe radiation hazard. Evacuate area immediately.
|Filedanger severe radiation hazard evacuate area immediately.ogg
|-
|DR4
|danger, safety, violation, extreme, radiation, level, detected
|Danger. Safety violation. Extreme radiation level detected.
|Filedanger safety violation extreme radiation level detected.ogg
|-
|}

===Doors===

====Access denied====

Used when the player repeatedly attempts to open the door leading to the Black Mesa Transit System|Transit System at the very end of the Sector A Facility|Hazard Course without asking a security guard (in ''Half-Life'') or Rosenberg (in ''Decay'') to do it as required by the course.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NA0
|access, denied
|Access denied.
|FileAccess denied.ogg
|-
|NA1
|access, is, denied
|Access is denied.
|FileAccess is denied.ogg
|-
|NA2
|unauthorized, access
|Unauthorized access. ''(reused for sentence "NA5")''
|FileUnauthorized access.ogg
|-
|NA3
|Illegal access
|Illegal access.
|FileIllegal access.ogg
|-
|NA4
|this, door, is, locked
|This door is locked.
|FileThis door is locked.ogg
|-
|NA6
|entry, forbidden
|Entry forbidden.
|FileEntry forbidden.ogg
|-
|NA7
|entry, not, permitted
|Entry not permitted.
|FileEntry not permitted.ogg
|-
|NA8
|no, unauthorized, personnel
|No unauthorized personnel.
|FileNo unauthorized personnel.ogg
|-
|NA9
|you, do, not, have, access, to, this, facility
|You do not have access to this facility.
|FileYou do not have access to this facility.ogg
|-
|NA10
|sorry, you, may, not, enter
|Sorry, you may not enter.
|FileSorry you may not enter.ogg
|-
|NA11
|sorry, this, door, is, locked
|Sorry, this door is locked.
|FileSorry this door is locked.ogg
|-
|NA12
|please, move, away, from, this, area
|Please, move away from this area.
|FilePlease move away from this area.ogg
|-
|NA13
|please, move, away, from, door
|Please, move away from door.
|FilePlease move away from door.ogg
|-
|NA14
|you, will, not, get, in
|You will not get in.
|FileYou will not get in.ogg
|-
|NA15
|entry, is, not, an, option
|Entry is not an option.
|FileEntry is not an option.ogg
|-
|NA16
|will, we, do, this, all, day
|Will we do this all day?
|FileWill we do this all day.ogg
|-
|NA17
|move, on, immediately
|Move on immediately.
|FileMove on immediately.ogg
|-
|NA18
|No, no, and, no
|No, no, and no. ''(In-game, the last "no" is pitched to a lower pitch, roughly remade for the wiki)''
|FileNo no and no.ogg
|-
|}

====Access granted (Unused)====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|EA0, EA8
|access, granted
|Access granted.
|Fileaccess granted.ogg
|-
|EA1
|access, permitted
|Access permitted.
|Fileaccess permitted.ogg
|-
|EA2
|entry, granted
|Entry granted.
|Fileentry granted.ogg
|-
|EA3
|entry, permitted
|Entry permitted.
|Fileentry permitted.ogg
|-
|EA4, EA6
|access, authorized
|Access authorized.
|Fileaccess authorized.ogg
|-
|EA5
|entry, is, permitted
|Entry is permitted.
|Fileentry is permitted.ogg
|-
|EA7
|access, to, facility, granted
|Access to facility granted.
|Fileaccess to facility granted.ogg
|-
|}

====Blast door====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NF0
|emergency, blast, door, activated
|Emergency blast door activated. ''(Near Sector E's Launch Control, if touching the exit door before or after launching the rocket.)''
|Fileemergency blast door activated.ogg
|-
|NF1
|emergency, blast, shield, activated
|Emergency blast shield activated. ''(Near Sector E's Launch Control, if touching the exit door before or after launching the rocket.)''
|Fileemergency blast shield activated.ogg
|-
|NF3
|the, blast, containment, shield, is, down
|The blast containment shield is down. ''(Unused)''
|Filethe blast containment shield is down.ogg
|-
|EF0
|emergency, blast, door, open
|Emergency blast door open. ''(Unused)''
|Fileemergency blast door open.ogg
|-
|EF1
|emergency, blast, shield, deactivated
|Emergency blast shield deactivated. ''(Unused)''
|Fileemergency blast shield deactivated.ogg
|-
|EF3
|blast, containment, shield, is, open
|Blast containment shield is open. ''(Unused)''
|Fileblast containment shield is open.ogg
|-
|}

====Broken locked door====

Heard upon trying to open the door to Supply B-301 located behind debris in Level A of Sector F's Lambda Reactor Core.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NG0
|sorry, this, door, is, inoperative
|Sorry, this door is inoperative.
|Filesorry this door is inoperative.ogg
|-
|NG1
|sorry, door, out, of, service
|Sorry, door out of service.
|Filesorry door out of service.ogg
|-
|NG2
|door, damage, detected, please, call, service, personnel
|Door damage detected. Please call service personnel.
|Filedoor damage detected please call service personnel.ogg
|-
|}

====Chemical door (Unused)====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NCHEM0
|chemical, leak, containment, door, activated
|Chemical leak containment door activated.
|Filechemical leak containment door activated.ogg
|-
|ECHEM0
|chemical, leak, containment, door, open
|Chemical leak containment door open.
|Filechemical leak containment door open.ogg
|-
|}

====Fire door====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NFIRE0
|fire, containment, door, is, down
|Fire containment door is down. ''(Used in Sector D's High Security Materials Storage Area)''
|Filefire containment door is down.ogg
|-
|EFIRE0
|fire, containment, door, open
|Fire containment door open. ''(Unused)''
|Filefire containment door open.ogg
|-
|}

====Generic containment door====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NCON0
|emergency, containment, door, engaged
|Emergency containment door engaged. ''(Heard at the containment door in the outdoor area before taking the elevator to the Black Mesa Central Complex)''
|Fileemergency containment door engaged.ogg
|-
|ECON0
|emergency, containment, door, disengaged
|Emergency containment door disengaged. ''(Unused)''
|Fileemergency containment door disengaged.ogg
|-
|}

====Maintenance door (Unused)====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NH0
|no, access, maintenance, area
|No access. Maintenance area.
|Fileno access maintenance area.ogg
|-
|NH1
|no, personnel, permitted, in, maintenance, area
|No personnel permitted in maintenance area.
|Fileno personnel permitted in maintenance area.ogg
|-
|EH0
|maintenance, area, access, granted
|Maintenance area access granted.
|Filemaintenance area access granted.ogg
|-
|EH1
|maintenance, area, door, open
|Maintenance area door open.
|Filemaintenance area door open.ogg
|-
|}

====Radiation door (Unused)====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|NRAD0
|radiation, containment, door, activated
|Radiation containment door activated.
|Fileradiation containment door activated.ogg
|-
|ERAD0
|radiation, containment, door, open
|Radiation containment door open.
|Fileradiation containment door open.ogg
|-
|}

====Security lookout mode (Unused)====

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|ND0
|security, lock, is, engaged
|Security lock is engaged.
|Filesecurity lock is engaged.ogg
|-
|ND1
|secure, area, no, entry
|Secure area. No entry.
|Filesecure area no entry.ogg
|-
|ND2
|security, lockout, no, entry
|Security lockout. No entry.
|Filesecurity lockout no entry.ogg
|-
|ND3
|secure, door, no, entry
|Secure door. No entry.
|Filesecure door no entry.ogg
|-
|ND4
|security, system, in, force
|Security system in force.
|Filesecurity system in force.ogg
|-
|ND5
|security, system, armed, no, entry
|Security system armed. No entry.
|Filesecurity system armed no entry.ogg
|-
|ND6
|door, is, secured
|Door is secured.
|Filedoor is secured.ogg
|-
|ND7
|illegal, access, move, away
|Illegal access. Move away.
|Fileillegal access move away.ogg
|-
|ED0
|security, lock, disengaged
|Security lock disengaged.
|Filesecurity lock disengaged.ogg
|-
|ED1
|security, clear, proceed
|Security clear. Proceed.
|Filesecurity clear proceed.ogg
|-
|ED2
|security, lockout, released
|Security lockout released.
|Filesecurity lockout released.ogg
|-
|ED3
|secure, override, accepted
|Secure override accepted.
|Filesecure override accepted.ogg
|-
|ED4
|security, access, acknowledged
|Security access acknowledged.
|Filesecurity access acknowledged.ogg
|-
|ED5
|security, system, disengaged
|Security system disengaged.
|Filesecurity system disengaged.ogg
|-
|ED6
|door, security, disengaged
|Door security disengaged.
|Filedoor security disengaged.ogg
|-
|}

===Automatic Turret|Turrets (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|T0
|extreme, hazard, defense, system, is, armed, in, this, zone
|Extreme hazard defense system is armed in this zone.
|Fileextreme hazard defense system is armed in this zone.ogg
|-
|T1
|hazard, area, defense, system, activated
|Hazard area defense system activated.
|Filehazard area defense system activated.ogg
|-
|T2
|danger, turret, perimeter, defense, system, armed
|Danger. Turret perimeter defense system armed.
|Filedanger turret perimeter defense system armed.ogg
|-
|T3
|extreme, hazard, nearest, defense, system, engaged
|Extreme hazard. Nearest defense system engaged.
|Fileextreme hazard nearest defense system engaged.ogg
|-
|T4
|danger, base, defense, turret, system, may, power, up
|Danger. Base defense turret system may power up.
|Filedanger base defense turret system may power up.ogg
|-
|T5
|danger, automatic, defense, system, activated
|Danger. Automatic defense system activated.
|Filedanger automatic defense system activated.ogg
|-
|}

===Warnings (Unused)===

{|class=wikitable border="1" style=width90%
|-
!width=15%|Sentence name
!width=30%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|WE0
|warning, high, voltage, cable
|Warning. High voltage cable.
|Filewarning high voltage cable.ogg
|-
|WE1
|warning, high, power, cable
|Warning. High power cable.
|Filewarning high power cable.ogg
|-
|WE2
|warning, electric, shock, hazard
|Warning. Electric shock hazard.
|Filewarning electric shock hazard.ogg
|-
|WE3
|warning, severe, electric, shock, hazard
|Warning. Severe electric shock hazard.
|Filewarning severe electric shock hazard.ogg
|-
|}

==Notification sounds==

'''Location''' sound/vox/

The various notification sounds starting the Black Mesa Announcement System's messages.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|bizwarn
|''"Bizwarn" sound''
|Filebizwarn vox.ogg
|-
|bloop
|''"Bloop" sound''
|Filebloop vox.ogg
|-
|buzwarn
|''"Buzwarn" sound''
|Filebuzwarn vox.ogg
|-
|dadeda
|''"Dadeda" sound''
|Filedadeda vox.ogg
|-
|deeoo
|''"Deeoo" sound''
|Filedeeoo vox.ogg
|-
|doop
|''"Doop" sound''
|Filedoop vox.ogg
|-
|}

== Other ==

'''Location''' N/A

Older version of the voice, from an unofficial ''Half-Life'' Desktop Theme. The sound files were provided by Valve.

{|class=wikitable border="1" style=width90%
|-
!width=15%|Filename(s)
!width=40%|Quote
!width=10%|Play
|-
|theme_authorized
|Authorized.
|FileTheme authorized.ogg
|-
|theme_unauthorized
|Unauthorized.
|FileTheme unauthorized.ogg
|-
|}

{{Quotes}}
CategoryQuotes by technology