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Alarm Sounds

The necessity for a signal sound to inform or warn members of a society is not a recent invention. Even in the Stone Age, drums and animal horns were used to spread messages far and wide. After the discovery of various metals, people began to manufacture signal horns for military use. Instruments like trumpets and trombones are derived from these early horns. As we can see, alarm systems and siren sounds have been part of our society since the dawn of mankind.
The use of alarm bells goes back all the way to the Egyptians and the time of the Pharaos. These so-called plate bells were hung from shelves so that their distinctive sound could be heard from far away. This technique is still being used today, except that plate bells and forged bells have been replaced with cast bells. For many centuries, storm bells and alarm bells were used to warn village and city dwellers from fires and attacking barbarians.
After the Industrialisation, the ambient noise of a mechanised society necessitated a new kind of alarm system. The first sirens were steam-powered pipes used on steamships, because traditional bells were no longer loud enough to overpower the noise of the engines.

Air Raid Alarm Sounds

Thanks to electricity and the invention of the motorised siren, this type of siren was widely adopted before and during the Second World War. The undulating, howling sound of the siren was highly characteristic, which made it an efficient warning signal ahead of air raids. It also became synonymous with the terror of falling bombs -- death dealt from the skies. An entire generation was scarred forever by the sound of the motorised siren.

Nuclear Alarm

During the Cold War, sirens were no longer used to warn of air raids. Instead, they became alarm systems for possible nuclear attacks. In Germany, the term 'alert' replaced the previous 'air raid warning'. A shortened, one-minute siren alarm was devised to alert citizens of a possible attack.
In post-WWII England, alarm sirens were assigned a new meaning: alerting people to the threat of a nuclear attack. They were also used to warn people of floods and freak weather, as well as escaped prisoners or highly dangerous mental-health patients.

Electric Alarm Sirens

Electric alarm sirens are not only used in household alarm systems or fire alarms, they are also quite common in civil defence structures (although in larger versions). Electric alarm sirens create the siren signal with the help of a loudspeaker and an amplifier. A horn directs the siren sound into whatever direction is desired. Electric sirens come with the benefit of having few mechanical parts that need maintenance (except for the loudspeaker). These sirens are therefore much lighter than their mechanical counterparts. Thanks to the electric transmission of the siren signal, undulating sounds can be created. It is also possible to use the siren as a public-address system.

Flood Alarm Sounds

In Switzerland, the flood alarm consists of twelve constant low-frequency sounds that last 20 seconds each (with 10 seconds intervals between them). If you hear the flood alarm, you should get out of the affected area immediately. Flood alarm sirens are only installed in high-risk areas such as dams. If a dam breaks and a flood wave is released, a general (undulating) siren alarm will go off in the areas at risk.

Tsunami Alarm

The term 'tsunami' became a household word after 2004 when a massive sea-quake in the Indian ocean triggered a series of devastating flood waves. Indonesia was hit particularly hard, along with other countries on the Indian ocean: Thailand, India and Sri Lanka all suffered massive devastation from the tsunamis.
To prevent future disasters of a similar kind and warn coastal populations about sea-quakes and tsunamis, many countries installed early warning systems. Sirens and info displays were set up along beaches to alert people of approaching tsunamis by sounding an alarm or displaying a text message. Tsunamis are the result of sea-quakes or underwater rock-falls. Depending on the location of the quake, the shock wave of the tsunami might take quite a bit of time until it hits the shore. Early warning systems use satellites and buoys to identify shockwaves and trigger alarms.
In Thailand, tsunami sirens alert the population and the tourists of the approaching danger in more densely populated areas. Sirens are also used to warn of tsunamis in other countries. The type of siren and alarm used depends on the region and the country. The goal is always the same, though: to warn of the approaching danger.

1 SoundStorm Library Sounddogs Alarm Category, Alarms-U.S.S.ForrestalAlarm Sound Effects Waveform Alarms-U.S.S.ForrestalAlarm.wav $ 2.04* Alarm - U.S.S. Forrestal Alarm - Int - CU Short Series Of Mid-Range Pulses 1.0

Alarm

Alarm

0:11 16 Bit / 48000 Hz 122010 SoundStorm Library
2 Casablanca Sound Library Sounddogs Alarm Category, Alarm,Jet,HUD,Lock,Fast,1 Sound Effects Waveform Alarm,Jet,HUD,Lock,Fast,1.wav $ 3.00* Alarm: Alarm Jet HUD Lock Fast 1 1.0 Alarm Alarm 0:07 16 Bit / 48000 Hz 4493 Casablanca Sound Library
3 SoundStorm Library Sounddogs Alarm Category, Alarms-CodeEntryBeeps-Int-C Sound Effects Waveform Alarms-CodeEntryBeeps-Int-C.wav $ 2.29* Alarm - Code Entry Beeps - Int - CU - High Pitched Single Tone Beeps 2.0 Alarm Alarm 0:06 16 Bit / 48000 Hz 121950 SoundStorm Library
4 SoundStorm Library Sounddogs Alarm Category, Alarms-NavyAlarmHornBlasts- Sound Effects Waveform Alarms-NavyAlarmHornBlasts-.wav $ 2.92* Alarm - Navy Alarm Horn Blasts - Interior - C U - Alarm Horn Blast Eight Times 2.0 Alarm Alarm 0:14 16 Bit / 48000 Hz 122008 SoundStorm Library
5 SoundStorm Library Sounddogs Alarm Category, Alarms-CodeEntryBeeps-Int_3 Sound Effects Waveform Alarms-CodeEntryBeeps-Int_3.wav $ 2.04* Alarm - Code Entry Beeps - Int - CU - High Pitched Single Tone Beeps 2.0 Alarm Alarm 0:04 16 Bit / 48000 Hz 121948 SoundStorm Library
6 BBC Sound Effects Library BBC Alarm Category, Alarms.BBC.EC203Jd Sound Effects Waveform Alarms.BBC.EC203Jd.wav $ 3.00* Power Station, Tap Change Alarm. (Conventional Power Station.) 2.0 Alarm Alarm 0:06 16 Bit / 44100 Hz 26436 BBC Sound Effects Library
7 SoundStorm Library Sounddogs Alarm Category, Alarms-IntercomTypeAlarmBuz Sound Effects Waveform Alarms-IntercomTypeAlarmBuz.wav $ 4.85* Alarm - Intercom Type Alarm Buzzer - C U - On, Off And Long Steady 2.0 Alarm Alarm 1:22 16 Bit / 48000 Hz 121992 SoundStorm Library
8 SoundStorm Library Sounddogs Alarm Category, Alarms-CodeEntryBeeps-Int_1 Sound Effects Waveform Alarms-CodeEntryBeeps-Int_1.wav $ 2.39* Alarm - Code Entry Beeps - Int - CU - High Pitched Single Tone Beeps 2.0 Alarm Alarm 0:07 16 Bit / 48000 Hz 121946 SoundStorm Library
9 BBC Sound Effects Library BBC Alarm Category, Alarms.BBC.EC203Jc Sound Effects Waveform Alarms.BBC.EC203Jc.wav $ 3.00* Power Station, Loading Signal Alarm. (Conventional Power Station.) 2.0 Alarm Alarm 0:10 16 Bit / 44100 Hz 26434 BBC Sound Effects Library
10 SoundStorm Library Sounddogs Alarm Category, Alarms-HospitalI.V.PumpAlar Sound Effects Waveform Alarms-HospitalI.V.PumpAlar.wav $ 3.86* Alarm - Hospital I.V. Pump Alarm - Int - C U - Medium Long Beeps With 8 Seconds Inbetween Each Beep - (Alerts If Fluid Stops Flowing Through Tube) 2.0 Alarm Alarm 0:37 16 Bit / 48000 Hz 121990 SoundStorm Library
11 SoundStorm Library Sounddogs Alarm Category, Alarms-ChemicalAlarm-Int-CU Sound Effects Waveform Alarms-ChemicalAlarm-Int-CU.wav $ 1.79* Alarm - Chemical Alarm - Int - CU High-Mid-Ranged Pulse 1.0 Alarm Alarm 0:07 16 Bit / 48000 Hz 121944 SoundStorm Library
12 BBC Sound Effects Library BBC Alarm Category, Alarms.BBC.EC203Ja Sound Effects Waveform Alarms.BBC.EC203Ja.wav $ 4.00* Power Station, Audible Alarm From A Recorder. (Conventional Power Station.) 2.0 Alarm Alarm 0:15 16 Bit / 44100 Hz 26432 BBC Sound Effects Library
13 SoundStorm Library Sounddogs Alarm Category, Alarms-HospitalHeartMonit_1 Sound Effects Waveform Alarms-HospitalHeartMonit_1.wav $ 3.77* Alarm - Hospital Heart Monitor Alarm - Int - C U - Constant Tone, (Lower Level Alarm, Not For Life Threatening Situations) 2.0 Alarm Alarm 0:34 16 Bit / 48000 Hz 121988 SoundStorm Library
14 SoundStorm Library Sounddogs Alarm Category, Alarms-AnchorAlarm-Int-CUHi Sound Effects Waveform Alarms-AnchorAlarm-Int-CUHi.wav $ 2.32* Alarm - Anchor Alarm - Int - CU High-Pitched Rattling - Fast 1.0 Alarm Alarm 0:17 16 Bit / 48000 Hz 121907 SoundStorm Library
15 SoundStorm Library Sounddogs Alarm Category, Alarms-WristWatchTravelAlar Sound Effects Waveform Alarms-WristWatchTravelAlar.wav $ 3.45* Alarm - Wrist Watch Travel Alarm - C U - Rapid, Plusing Beeps, Has A Slight Sense Of Urgency 2.0 Alarm Alarm 0:25 16 Bit / 48000 Hz 122017 SoundStorm Library
16 SoundStorm Library Sounddogs Alarm Category, Alarms-HammerGong-Int-CURep Sound Effects Waveform Alarms-HammerGong-Int-CURep.wav $ 3.36* Alarm - Hammer Gong - Int - CU Repetitive Metallic Impacts 1.0 Alarm Alarm 1:02 16 Bit / 48000 Hz 121986 SoundStorm Library
17 Coll Anderson Sound Library Sounddogs Alarm Category, EFX INT Dig. Alarm Clock 03 Sound Effects Waveform EFX INT Dig. Alarm Clock 03.wav $ 4.00* Alarm: House, Interior, Digital Alarm Clock Beep Beep Beep Tone, Very Close And More Distant 2.0 Alarm Alarm 0:33 24 Bit / 48000 Hz 9938 Coll Anderson Sound Library
18 SoundStorm Library Sounddogs Alarm Category, Alarms-AirlinerWarningAlarm Sound Effects Waveform Alarms-AirlinerWarningAlarm.wav $ 1.72* Alarm - Airliner Warning Alarm - Ext - MCU - Nagging Mid-Range Signals 1.0 Alarm Alarm 0:06 16 Bit / 48000 Hz 121903 SoundStorm Library
19 SoundStorm Library Sounddogs Alarm Category, Alarms-WhistleAlarm-Int-CUN Sound Effects Waveform Alarms-WhistleAlarm-Int-CUN.wav $ 3.42* Alarm - Whistle Alarm - Int - CU Nasally, Mid-Range Signals 1.0 Alarm Alarm 1:06 16 Bit / 48000 Hz 122015 SoundStorm Library
20 Coll Anderson Sound Library Sounddogs Alarm Category, EFX INT Dig. Alarm Clock 01 Sound Effects Waveform EFX INT Dig. Alarm Clock 01.wav $ 4.00* Alarm: House, Interior, Digital Alarm Clock Beep Beep Beep Tone 2.0 Alarm Alarm 0:16 24 Bit / 48000 Hz 9936 Coll Anderson Sound Library
21 SoundStorm Library Sounddogs Alarm Category, Alarms-FireAlarmHighPitchBe Sound Effects Waveform Alarms-FireAlarmHighPitchBe.wav $ 4.69* Alarm - Fire Alarm High Pitch Beeps - C U - On, Off And Long Steady 2.0 Alarm Alarm 1:13 16 Bit / 48000 Hz 121983 SoundStorm Library
22 SoundStorm Library Sounddogs Alarm Category, Alarms-WarningBuzzer-Int-CU Sound Effects Waveform Alarms-WarningBuzzer-Int-CU.wav $ 3.09* Alarm - Warning Buzzer - Int - CU Short To Medium Long Signals 2.0 Alarm Alarm 0:17 16 Bit / 48000 Hz 122013 SoundStorm Library
23 Casablanca Sound Library Sounddogs Alarm Category, Alarm,Jet,HUD,Lock,Slow Sound Effects Waveform Alarm,Jet,HUD,Lock,Slow.wav $ 4.00* Alarm: Alarm Jet HUD Lock Slow 1.0 Alarm Alarm 0:17 16 Bit / 48000 Hz 4496 Casablanca Sound Library
24 SoundStorm Library Sounddogs Alarm Category, Alarms-ElevatorBuzzer-Int-M Sound Effects Waveform Alarms-ElevatorBuzzer-Int-M.wav $ 2.29* Alarm - Elevator Buzzer - Int - MCU Single Long Signal 2.0 Alarm Alarm 0:06 16 Bit / 48000 Hz 121981 SoundStorm Library
25 SoundStorm Library Sounddogs Alarm Category, Alarms-VentilatorWAirInI.V. Sound Effects Waveform Alarms-VentilatorWAirInI.V..wav $ 3.86* Alarm - Ventilator W Air In I.V. Pump Alarm - Int - C U - Regular I.V. Pump Alarm With Erratic Ventilator, Off Stage Voices In Background 2.0 Alarm Alarm 0:37 16 Bit / 48000 Hz 122011 SoundStorm Library
26 Casablanca Sound Library Sounddogs Alarm Category, Alarm,Jet,HUD,Lock,Fast,2 Sound Effects Waveform Alarm,Jet,HUD,Lock,Fast,2.wav $ 3.00* Alarm: Alarm Jet HUD Lock Fast 2 1.0 Alarm Alarm 0:06 16 Bit / 48000 Hz 4494 Casablanca Sound Library
27 SoundStorm Library Sounddogs Alarm Category, Alarms-CollisionAlarm-Ext-C Sound Effects Waveform Alarms-CollisionAlarm-Ext-C.wav $ 2.28* Alarm - Collision Alarm - Ext - CU Reverberant By 1.0 Alarm Alarm 0:16 16 Bit / 48000 Hz 121951 SoundStorm Library
28 SoundStorm Library Sounddogs Alarm Category, Alarms-U.S.S.ForrestalAla_1 Sound Effects Waveform Alarms-U.S.S.ForrestalAla_1.wav $ 1.63* Alarm - U.S.S. Forrestal Alarm - Ext - CU Reverberant By 1.0 Alarm Alarm 0:05 16 Bit / 48000 Hz 122009 SoundStorm Library
29 SoundStorm Library Sounddogs Alarm Category, Alarms-CodeEntryBeeps-Int_4 Sound Effects Waveform Alarms-CodeEntryBeeps-Int_4.wav $ 1.67* Alarm - Code Entry Beeps - Int - CU - High Pitched Single Tone Beeps 2.0 Alarm Alarm 0:02 16 Bit / 48000 Hz 121949 SoundStorm Library
30 SoundStorm Library Sounddogs Alarm Category, Alarms-KitchenAlarm-Int-MCU Sound Effects Waveform Alarms-KitchenAlarm-Int-MCU.wav $ 5.61* Alarm - Kitchen Alarm - Int - MCU - Kitchen Room Tone With Alarm Buzz And Clock Ticking 2.0 Alarm Alarm 2:16 16 Bit / 48000 Hz 121993 SoundStorm Library