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Author Topic:   spectral tracking
flo
Member 		posted 13 December 2010 14:04         Edit/Delete Message   Reply w/Quote
hi all,

how can i track the harmonics of a bowed piano sound?
You could call this kind of spectral tracking - is this possible
with for example the brigthness follower?
i'd like to have an output of this that i could use to control
other parameters (like with an amp follower).

thanks + best,
florian

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SSC
Administrator 		posted 13 December 2010 20:27         Edit/Delete Message   Reply w/Quote
The brightness follower gives a sense of how much "weight" is given to the higher partials. It doesn't give you a number of partials, but it does give you an indication of how loud they are relative to the fundamental.

Also, if you create a Gallery in the TAU editor and look at the parameters of the Fantasy Sounds, you'll see another way to get a brightness envelope (in this case, by sending the bandwidthEnvelopeWithTimeIndex: message to PSI file).

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flo
Member 		posted 14 December 2010 06:00         Edit/Delete Message   Reply w/Quote
thanks for the info. Does it make sense to use the output of the brightness follower to control a parameter of another sound? (like it is possible with an amp follower)


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SSC
Administrator 		posted 14 December 2010 08:25         Edit/Delete Message   Reply w/Quote
Yes! Any Sound can be pasted into a parameter field. Or you could use the SoundToGlobalController version of the brightness follower.

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CharlieNorton
Member 		posted 14 December 2010 21:56         Edit/Delete Message   Reply w/Quote
quote:
Originally posted by flo:
Does it make sense to use the output of the brightness follower to control a parameter of another sound? (like it is possible with an amp follower)

That is the beauty of the Kyma. You might be on the verge of something spectacular.
I for one, had not considered harmonic content as a modulation source. You should make a patch demonstrating such technique, give it a name, upload it to the tweaky and claim it as your own!

Perhaps reverb send level increases with brightness?

Or perhaps carla's live detune patch, with less harmonics = more detune.
http://www.symbolicsound.com/cgi-bin/forumdisplay.cgi?action=displayprivate&number=7&topic=000333

Random late night posting, ignore at will.

Charlie

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