01 / Listen · Session01 / Listen · Session

Traditional / experimental practice

Unseen Creatures · The Elephant's Rumble

The fundamental of an African elephant's rumble is infrasonic: below the lower limit of our hearing. Here the pitch is three octaves (8 times) higher, at real time. Two elephants that have become separated call to each other with rumbles: first the near one, then the reply from the far one. The pitch, shape and length of the rumble are representative. Not a recording: a representative synthesis built from the measurements in the sources. There is no claim of any effect.

5 minNo headphones neededEvidence level S: Soundscape, no claim

The same recipe with another seed: the raindrops, the order of the birds or the path of the chords change; the rules and evidence level stay the same.

Liner notes

Bed
Wind
Strikes
Call ×2
What do you hear?
hissy · continuous · wide

3 layers, 2 sound engines; generated on this device every time it plays.

How is this sound made?

  1. Wind−36 dB

    Wind (ambient sound generated on your device)

  2. Call−24 dB

    Call · harmonic, 11 calls, 104-128 Hz

  3. Call−24 dB

    Call · harmonic, 8 calls, 104-128 Hz

  • Reverb: hall, 20% mix

In the room you can listen to each layer on its own, change its settings and save it as your own recipe.

Sound is generated on this device in real time; no files are downloaded from a server. There is a 2 s fade-in at the start and a 0 min fade-out at the end.

Compare with another sound

Hear both at the same loudness; drag the slider to the middle and they blend.

Mixed in the middle, the partials of these two sounds would create an unlabelled beat (4-40 Hz): the slider crosses the middle with a short crossfade.

B: neighbours on the map

8 trials, half of them the same sound; get at least 7 right and the difference is audible. The result stays on this device.

What do we know, what don't we know?

S · Soundscape, no claim

No health or mental-effect claim at all; it is simply a soundscape.

This session isn't linked to any claim of effect.

A session's level is the weakest of its linked claims; it is never raised by a strong but unrelated claim.

Its neighbours on the map

The five sounds closest to this one by measured sound features.

Keep your device volume comfortable, preferably below 60%. You can also use your device's headphone-safety settings.