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Re: [Sc-devel] Added machine-listening UGens: SpecCentroid, SpecFlatness, SpecPcile



Hmm... strange. This time it worked! Even across restart, so I'm not sure what the problem would have been!

Josh

On Dec 20, 2007, at 10:15 AM, Dan Stowell wrote:

Josh,

Thanks for the report. Are you getting the blip sound playing back
correctly? Is the FFT buffer definitely allocated correctly? Are you
on PPC or Intel?

If you have time it'd be helpful to know if you get the correctly
resynthesised Blip, by outputting IFFT(chain).

Dan


2007/12/20, Josh Parmenter <josh@xxxxxxxxxxxxxxxxx>:
Hi Dan,

I just updated, and the SpecCentroid example seems a little strange? I
run it and only 0's show up in the centroid poll (moving mouse all
over the place!)

Best,

Josh

On Dec 20, 2007, at 9:53 AM, Dan Stowell wrote:

Good point. Maybe we should have a Machine Listening overview page?
Many of the ML UGens use FFT data, but thematically they're separate
and there are ML UGens that don't hang off FFT.

Dan


2007/12/20, Scott Wilson <i@xxxxxxxxxxxxxx>:
Very nice! Could one of you guys update the FFT Overview file before
3.2?

S.

On 20 Dec 2007, at 17:08, Dan Stowell wrote:

Hi all -

Partly connected with offlist discussions with Nick, I've now (rev
6827) added three more UGens to the MachineListening target:
SpecCentroid, SpecFlatness, SpecPcile. They're essentially the
same as
the FFTCentroid, FFTFlatness, FFTPercentile from my plugin pack.

Briefly: SpecCentroid correlates with perceived brightness,
SpecFlatness correlates with perceived noisiness, SpecPcile
estimates
the sonic equivalent of filter cutoff positions (the "rolloff
point").

Along with the other recent ML UGens, I'd say this now means that SC
has pretty much the complete set of acoustic measures that are
well-supported by perceptual/timbral research, which is nice. The
more
"cutting-edge" stuff that is less common will stay in the external
plugin packs of course, but the ones Nick and I have added have a
lot
of research literature behind them.

Dan
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******************************************
/* Joshua D. Parmenter
http://www.realizedsound.net/josh/

"Every composer – at all times and in all cases – gives his own
interpretation of how modern society is structured: whether actively
or passively, consciously or unconsciously, he makes choices in this
regard. He may be conservative or he may subject himself to continual
renewal; or he may strive for a revolutionary, historical or social
palingenesis." - Luigi Nono
*/


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_______________________________________________
Sc-devel mailing list
Sc-devel@xxxxxxxxxxxxxxx
http://www.create.ucsb.edu/mailman/listinfo/sc-devel

******************************************
/* Joshua D. Parmenter
http://www.realizedsound.net/josh/

“Every composer – at all times and in all cases – gives his own interpretation of how modern society is structured: whether actively or passively, consciously or unconsciously, he makes choices in this regard. He may be conservative or he may subject himself to continual renewal; or he may strive for a revolutionary, historical or social palingenesis." - Luigi Nono
*/