Analysing audio and generating white noise

[Trebor]

@MinHooi

… I will use my recording of white noise and try to mimic the pattern of a corresponding cry/bab clip. I plan to use the “envelope tool” to mimic the audio pattern of the clips.

Sounds like you’re trying to create a chimera : the frequencies of one sound with the envelope of another,
e.g. … Freesound - babycryCYMBOL.wav by bgygi , Freesound - pingpBELLS.wav by bgygi

Senior Forum member Steve’s “envelope follower” code can be used to do that, (more accurately than the envelope tool could) …

This is the code that copies an amplitude envelope from the left channel of a stereo pair and applies it to the right channel …

Import List of Frequencies and Levels

An interesting concept. I’ve used “Plot Spectrum” to analyse some piano notes, then used a modified form the code from the previous message to synthesize the piano tones, and finally applied the original amplitude envelope to synthesized tones. This is a rather crude form of synthesis, but the result is undeniably piano-like. Here’s a brief recording of the original piano notes followed by the synthesised notes. The difference between the code used to synthesize this and the previously post…