Hi folks,
I'd lke to distort a sound spectrum by transposing partials the way I want. Like making the spectrum more inharmonic or harmonic.
Anyone done something similar?
What kind of processing should I use?
I was thinking that maybe a Phase Vocoder, where you could control the frequency separately, huh!?!? Anyone did this by the way?
thanks a lot Alex
There's a method of tuning partials that William Sethares uses in his compositionss and he talks about it in his book Tuning Timbre Spectrum Scale.
Specifically, he was also using inharmonic instruments which would be arranged into consonant scales, and the similar problem of using arbitrary scales with inharmonic spectra to fit with least dissonance. I know I read the spectral mapping technique he uses, but I didn't really understand how it works.
On Fri, Apr 2, 2010 at 2:38 PM, Alexandre Porres porres@gmail.com wrote:
Hi folks, I'd lke to distort a sound spectrum by transposing partials the way I want. Like making the spectrum more inharmonic or harmonic. Anyone done something similar? What kind of processing should I use? I was thinking that maybe a Phase Vocoder, where you could control the frequency separately, huh!?!? Anyone did this by the way? thanks a lot Alex _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
I know I read the spectral mapping technique he uses, but I didn't really understand how it works.
me neither, guess he didn't really explained it wel...
cheers
2010/4/2 Charles Henry czhenry@gmail.com
There's a method of tuning partials that William Sethares uses in his compositionss and he talks about it in his book Tuning Timbre Spectrum Scale.
Specifically, he was also using inharmonic instruments which would be arranged into consonant scales, and the similar problem of using arbitrary scales with inharmonic spectra to fit with least dissonance. I know I read the spectral mapping technique he uses, but I didn't really understand how it works.
On Fri, Apr 2, 2010 at 2:38 PM, Alexandre Porres porres@gmail.com wrote:
Hi folks, I'd lke to distort a sound spectrum by transposing partials the way I
want.
Like making the spectrum more inharmonic or harmonic. Anyone done something similar? What kind of processing should I use? I was thinking that maybe a Phase Vocoder, where you could control the frequency separately, huh!?!? Anyone did this by the way? thanks a lot Alex _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
frequency shifting and then pitch shifting by the same amount in hertz will compress or expand a spectrum around a particular frequency (which could or could not be the fundamental...)
J
On Fri, Apr 2, 2010 at 1:05 PM, Alexandre Porres porres@gmail.com wrote:
I know I read the spectral mapping technique he uses, but I didn't really understand how it works.
me neither, guess he didn't really explained it wel...
cheers
2010/4/2 Charles Henry czhenry@gmail.com
There's a method of tuning partials that William Sethares uses in his
compositionss and he talks about it in his book Tuning Timbre Spectrum Scale.
Specifically, he was also using inharmonic instruments which would be arranged into consonant scales, and the similar problem of using arbitrary scales with inharmonic spectra to fit with least dissonance. I know I read the spectral mapping technique he uses, but I didn't really understand how it works.
On Fri, Apr 2, 2010 at 2:38 PM, Alexandre Porres porres@gmail.com wrote:
Hi folks, I'd lke to distort a sound spectrum by transposing partials the way I
want.
Like making the spectrum more inharmonic or harmonic. Anyone done something similar? What kind of processing should I use? I was thinking that maybe a Phase Vocoder, where you could control the frequency separately, huh!?!? Anyone did this by the way? thanks a lot Alex _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Hey Alex I'm not sure if this is what you're after, but have a look in the help browser for: 3.audio.examples/D08.table.spectrum This is basically a bank of oscillators reading their own specific pitches from a single table. Perhaps use: FFT to feed the table and [sigmund~] to set the pitch. Orchange the arguments in [spectrum_partial] in [pd oscbank] so you can manipulate the partials more precisely (you could add an inlet or a recieve to control these from somewhere else in your patch). Hope this helps. Andrew Date: Fri, 2 Apr 2010 15:38:15 -0400 From: porres@gmail.com To: pd-list@iem.at Subject: [PD] Spectral Shiffting
Hi folks, I'd lke to distort a sound spectrum by transposing partials the way I want. Like making the spectrum more inharmonic or harmonic. Anyone done something similar?
What kind of processing should I use? I was thinking that maybe a Phase Vocoder, where you could control the frequency separately, huh!?!? Anyone did this by the way?
thanks a lotAlex
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here's a frequency shifter that slur posted on the pd forum a little while ago:
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