[LAD] Ladspa plugin invisible
kschutte at csail.mit.edu
Fri Nov 30 21:16:52 UTC 2007
Rémi Thébault wrote:
> By the way, for the moment I use FFTW for the frequency identification.
> Is there a way to identify a frequency with quite high precision without
> computing a big spectrum analysis ?
You might want to look at the Goertzel algorithm (see a DSP book or
Note, this doesn't effect how big of a window you need to resolve a
particular frequency. But, if you want to compute a big FFT, but will
only be looking at a relatively small subset of the freq bins it
outputs, then this can be more efficient.
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