TIME-COMPRESSING INFRASONIC RECORDINGS
TO DISCOVER NEW SOUNDS
by:
Watching ripples on a pond one day gave me an idea. Water surface waves are a common analogy for sound waves; what if water surface waves were recorded and then played back at a higher speed as sound? And how about other slow periodic phenomena? They could also be captured with an appropriate pickup and recorder. Like other "found sounds," some time-compressed infrasonic signals could find uses ranging from ring-tones to games to experimental music. My "infrasonicon" project tests the waters of this idea.
Here's an overview of the Infrasonicon. I've split it into six brief parts:
Examples of time-compressed recordings made with the Infrasonicon
Comming soon at this site:
Some key definitions:
Infrasonic--Literally "below sound," this adjective refers to any phenomenon, signal, or waveform having a frequecy less that 20 Hz. The phenomenon need not emit infrasound.
Infrasound--Pressure waves propagating through some medium, such as air, with frequecies less than 20 Hz (by convention, the low-frequency end of the audio band). I will soon fine-tune these definitions a bit more elsewhere within this web site.
Infrasonicon--Any channel (or set of synchronized channels) specifically designed to record an infrasonic phenomenon and then convert it to sound using high-speed playback. I coined this term and invite you to add it to your lexicon. An infrasonicon is to sound as time-lapse cinematography is to images.
Time compression--Playing back a signal faster than it was originally recorded.
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