Maybe pvscross or pvsmorph would do ?
The samples of the same note at different dynamics would be similar
enough that these spectral morphing techniques should do a good job of
interpolating between them.
Oeyvind

2008/8/29, Michael Mossey <mpm@alumni.caltech.edu>:
>
>
> Oeyvind Brandtsegg wrote:
> > I'm not sure, but it seems like you are likely to get trouble with
> > phase cancellation with any kind of mixing. It seems unlikely to me
> > that it would be possible to perfectly align the phases of all
> > partials in two (piano) samples. But I might be wrong.
> >
> > Just an idea,
> > maybe you could split the audio into separate frequency bands, mixing
> > each band separately. This would mean (simplified)  that you took e.g.
> > the high frequencies of sample 2 mixed with the lows from sample 1,
> > and used this as the "interpolation midpoint"
> > Hi: 1   2  2
> > Lo: 1  1  2
> > Obviously, this would not get rid of the phase cancellations of
> > frequencies very close to each other. And on second thought, those are
> > the ones you would be most keen on getting rid of...
> >
> > Oeyvind
> >
> >
>
> You know, this is my thought, too. The situation must be more complex that
> just cross fading between sample due to the creation of peaks and nulls. And
> yet gigastudiio claims to do it. And a piano sampler "engine" called Ivory
> claims to do it. Ivory is amazing... it has pianos with 10 layers, it uses
> filters to reduce mechanical noise if you want to, it can control dynamic
> range, and you can reconfigure it in numerous ways. Want to use only 6
> layers and save memory (speed it up)? Fine. Want to use merely 4 layers?
> Great.
>
> I have a strong preference for the 4 layer version, becuase the quality of
> tone and attack doesn't vary a lot from midi vel=10 to midi vel=120. In the
> 10 layer system however, if you send a note with vel=10, you get the
> tiniest, most muted soud you can imagine. If you hit a note a bit too hard
> by mistake and send vel=120, you get this enormous blast of a
> fortiss-iss-issimo thing spewing from your speakers.
>
> Anyway, my interest is in implementing similar sample systems so I have a
> little more control over what they are doing.
>
>
> Thanks,
> Mike
>
>
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