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Airplane, train and carcabin sounds.

The inside of a plane, a train or a car at night has a low, enclosed drone. Walls and windows block high frequencies far better than low ones, which leaves a deep sound close to brown noise.

The inside of a plane, train or car sounds deep because walls and windows block high frequencies much better than low ones. What reaches you is mostly the low rumble of engines and wheels, close in shape to brown noise.

Why cabins sound so deep

Insulation, glass and panels stop high frequencies much more easily than low ones. What reaches you is mostly the rumble of engines, wheels and moving air, with the hiss filtered away.

Measured against brown noise

Between 2 and 12 kHz, Airplane cabin falls 5.1 dB per octave and Night train falls 5.4 dB per octave, close to Deep brown, which falls 3.4 dB per octave. The darkest sound in Hush's whole library is Tumble dryer: it falls 6.1 dB per octave.

0-10-20-30-4022.5345681012
Airplane cabin −5.1 dB per octaveDeep brown −3.4 dB per octave
Band by band, in numbers
Level in each band, in dB relative to each sound's overall level
BandAirplane cabinDeep brownDifference
2 kHz−16.9 dB−14.5 dB+2.4 dB
2.5 kHz−18.6 dB−15.7 dB+2.9 dB
3 kHz−20.0 dB−16.7 dB+3.3 dB
4 kHz−22.3 dB−18.1 dB+4.2 dB
5 kHz−24.0 dB−19.2 dB+4.8 dB
6 kHz−25.2 dB−20.0 dB+5.2 dB
8 kHz−27.3 dB−21.2 dB+6.1 dB
10 kHz−28.9 dB−22.4 dB+6.5 dB
12 kHz−30.0 dB−23.5 dB+6.5 dB

Rumble and movement

Night train is built from rumble, wheels and rails, and every travel sound in Hush has layers, so with Hush Plus you can bring forward the rumble or the movement over it.

Sounds in this article

  • Night coachA long road, a low engineTilt −6.0 dBper octaveEngineRoadVentHush Plus
  • Distant highwayLow rolling roadTilt −5.9 dBper octaveRoarCarsTrucksHush Plus
  • Rain on the carParked under a downpourTilt −5.8 dBper octaveRoofGlassOutsideHush Plus
  • Late subwayRolling tunnel rhythmTilt −5.7 dBper octaveRumbleWheelsAirHush Plus
  • Sailboat cabinA creaking hull at anchorTilt −5.6 dBper octaveSwellLappingCreaksHush Plus
  • Canal boatSlow engine, quiet waterTilt −5.6 dBper octaveEngineWashHush Plus
  • Night trainMuted rail rhythmTilt −5.4 dBper octaveRumbleWheelsRailsHush Plus
  • Night driveRoad hum through the seatTilt −5.3 dBper octaveEngineRoadWindHush Plus
  • Airplane cabinDeep cruising humTilt −5.1 dBper octaveCabinAirflowEnginesHush Plus
  • Ferry cabinLow engine and waterTilt −4.5 dBper octaveEnginesHullVentHush Plus
All travel sounds

Keep reading

SleepSound for sleepHow to choose a sleep sound you stop noticing, how loud to play it, and whether it should stop once you are asleep.Listening in HushLayers51 of Hush's 72 sounds are built from separate layers, such as drops, distant rain and background. How to set each one.Listening in HushOffline listeningEvery one of Hush's 72 sounds is stored on the device, so it plays on a plane, without signal or with Wi-Fi off. No account, no streaming.

Questions

Is there a free cabin sound in Hush?

No. The travel sounds are part of Hush Plus. Deep brown, which is free, has a similar deep shape.

Can I make the engine quieter?

With Hush Plus, yes. Airplane cabin is built from cabin, airflow and engines, and you can set the level of each.

Ask your own question at info@strateal.com

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