Forums > MaxMSP

Buffer Analysis

March 11, 2009 | 2:36 pm

does anyone know of ways to analyse the content of a buffer to gain info on what’s inside it? e.g. length, pitch, spectral information?


March 11, 2009 | 3:21 pm

The info~ object will give you stuff like length and sample rate and some other stuff, but pitch and FFT stuff? Um, no.


March 11, 2009 | 3:44 pm

is it then a case of analysing the audio itself?

i was wondering if there was a way to implement something like an SDIF analysis in MSP?


March 16, 2009 | 10:43 am

There are tools for this kind of stuff in the FTM library from Ircam. Not yet Max 5 though, but close….

Stefan


March 16, 2009 | 1:06 pm

You could externals: [fiddle~] or Tristan Jehan’s [analyzer~] for more info.
Jean-François.


March 16, 2009 | 1:11 pm

I hope that the final Max5 version of FTMlib loads in such a manner that internal lib functions (like yyparse()) aren’t ‘exposed’. Right now it’s a real problem for rtcmix~ and chuck~, and I imagine it will be a problem for other developers in the future.

brad
http://music.columbia.edu/~brad


March 16, 2009 | 1:48 pm

I use Thomas Grill’s VASP external for this, it works offline so you don’t have to play the buffer through analyzer~ to get useful info, it is a bit involved though and all the best example patches are in pd.


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