[LAU] Analysis of monophonic audio signals on the commandline

[Jeanette C.]

Hi Bill,
the bird.scm is your package? I didn't realise! Thanks for a great piece of 
work there. Someone on the Csound mailinglist alerted me to it and I am 
currently in the process of translating that to Csound. Perhaps I'll also give 
animals.scm a go afterwards. I am not sure yet. the few birds I have so far 
are amazing and beautiful!

Best wishes,

jeanette

Feb 28 2022, bil at ccrma.Stanford.EDU has written:

> I think what Fons says is correct.  You can get
> close using just a sine wave and two complicated
> envelopes for amplitude and frequency.  I did a
> bunch of bird songs this way back around 1980 --
> see bird.scm in the Snd package.  These are in
> Scheme using CLM, but it should be easy to grab
> the envelopes and use them elsewhere. The Snd
> package also has animals.scm: much more sophisticated
> attempts to synthesize birds, frogs, insects, etc.
> There's a brief discussion of that file in
> sndscm.html#animalsdoc also in the Snd package.
> But in any case, listen to say a hermit thrush
> or a red-winged blackbird slowed down and transposed
> down -- unbelievably beautiful!  I really had a
> blast trying to synthesize these songs.
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