It's possible to do timestretching with partial tracking
using the pvsfread + partials. Just feed the output fsig
from pvsfread to both fsig inputs in partials.
The main thing is that the frame rate has to be altered for
any timescale
modifications. Hence, pvsifd or pvsanal cannot be used
for that purpose.

What we need and I have to write (just been too lazy to do
it) is an analysis utility to generate files with partial
tracks and
an opcode to read them and feed directly to adsyn/resyn.

For the moment, the pvsfread will work anyway. In fact you
don't need to do partial tracking, but that can help give a
better quality esp. with extreme stretching.

Victor


>
> In general I'm curious if the paper that outlines the
> basis for the  pvsifd technology is available anywhere.
>
> I have not been able to locate it yet, but I will keep
> searching.
>
>
> -David
>
> On Mar 3, 2006, at 5:49 PM, Bob Bear wrote:
>
> >
> >  Hi,
> >
> >  Does anyone know if there is an opcode for time
> > stretching with the  pvsifd analysis? Iv been using this
> > with 'partials' for pitchscaling  and 'resyn' for
> > resynthesis, but Id like to do some time stretching to
> if possible (using this analysis opcode). >
> >  Cheers!
> >
> >  BB
>
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