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Pseudo random noise produced by progressively adding and overlaying pure tones.
Generated by choosing a random frequency in the audible range (uniform sampling) and then adding 80 samples (about 1.8ms) of that frequency, then repeating the process for a different frequency.
0:00 to 0:02 - as described above, only a single tone at any time.
0:02 to 0:07 - similar, but there are 5 tones overlaid; again each is random.
0:07 to 0:12 - same but with 10 tones
0:12 to 0:17 - 15 tones
0:17 to 0:22 - 20 tones
This sound, at least at the end, should be fairly close to white noise - though it sounds like there's still some residual tonal structure present. As with the previous example, the sound consists solely of a relatively small number of pure tones, but the presence of randomness does the hard work as far as removing the tonal structure of the sound to get us close to a state of noise. It's this balance of pure tones versus randomness that I was originally interested in investigating.
Type
Wave (.wav)
Duration
0:22.099
File size
1.9 MB
Sample rate
44100.0 Hz
Bit depth
16 bit
Channels
Mono