[PlanetCCRMA] pitch shifting

Oded Ben-Tal oded@ccrma.Stanford.EDU
Sun Aug 1 03:23:01 2004

I'm trying to design an experiment using short (~3-5 sec.) instrumental 
excerpts. I need to play them in different transpositions. The sound 
quality of the transposed versions doesn't need to be excellent since its 
going to be played over cheap headphones, but the transposed version can't 
sound obviously distorted. I've been experimenting a little with ceres3 
with mixed results. Piano sounds, for example, get terribly distorted 
because transients aren't going well through the FFT analysis/synthesis. 
Does anyone have suggestions of another simple method? 
Any suggestions about parameter settings (window type? etc.) that tend to 
produce better results for specific sound types?