[Speex-dev] FFTW3 for libspeexdsp

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Tue May 27 04:23:03 PDT 2008


Patch applied. I'm interested in feedback on this.

	Jean-Marc

Thorvald Natvig a écrit :
> Hi,
> 
> Attached is a patch which enables FFTW3 to be used by libspeexdsp. Using
> SSE, the FFT code is more than twice as fast, and it's 50% faster even
> without SSE. To enable the library, you'll need to call configure with
> '--with-gpl-fftw3'.
> 
> Based on the benchmarking we did, this also changes the default FFT to
> smallft for floating point implementations when not using FFTW3.
> 
> Best regards,
> Thorvald
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Speex-dev mailing list
> Speex-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/speex-dev


More information about the Speex-dev mailing list