Re: matlab pitch/stretch (Matt Flax )

Subject: Re: matlab pitch/stretch
From:    Matt Flax  <flatmax(at)IEEE.ORG>
Date:    Thu, 18 Jul 2002 16:29:22 +1000

On Wed, Jul 17, 2002 at 10:53:18PM -0700, John Hershey wrote: > Hi all, > > I find my self suddenly in need of high quality Matlab code to pitch shift > arbitrary sounds for use as experimental stimuli, while preserving the > temporal dynamics. I could equivalently use time-stretch code and resample > back to the original time scale to get a pitch shift. I am aware that there > are several techniques for doing this - phase-vocoder, granular resynthesis, > other signal models... Who has some matlab code for their favorite > technique? I have an app. for doing this, which can be called by a system command from matlab or octave. Please note it is a time stretching algorithm which WILL alter pitch related information if resampled .... Further information and downloads are available from here : Matt > > Thanks, > John -- WSOLA TimeScale Audio Mod : FFTw C++ : Vector Bass : Multimedia Time Code :

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