[linux-audio-dev] detune

Hans Fugal hans at fugal.net
Sun Jan 15 20:11:18 UTC 2006


mlang wrote:

> I'd like to suggest this article:
> 
> http://www.dspdimension.com/data/html/pshiftstft.html
> 
> It is wonderfully detailed, includes all the necessary C source
> code to take the basic idea and make it fly.  I used this
> method to write my instrument tuner by ripping out the last phase
> of the algorithm (resynthesis) and only using the exact
> frequency peak info.  Its pretty useful, and I learned a lot
> from this article.  Actually, I think thats the single most useful
> DSP tutorial I've ever read.  It made me really grok FFT, which
> is something by its own right :-)
> Oh, and it is pretty simple to make this stuff work with libfftw3, just
> read tuneit.c (http://delysid.org/tuneit.html).

Thanks for these excellent links, I think they will help me understand 
this very well. And thanks to everyone else for their insights as well.




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