Re: [Audacity-devel] Libresample now enabled

[Alexandre P. <av...@al...>]

Dominic Mazzoni wrote
> I finished adding Libresample to Audacity.  There's now a class
> "Resample" in Resample.cpp that abstracts the interfaces to the
> two resamplers, and Audacity can be configured to use either one.
> Libresample is enabled by default and should be used for all
> binaries because of GPL issues.
> 
> A Windows user will have to add Resample.cpp at some point,
> create a project file for libresample (should be very easy;
> email me if you have questions), and modify configwin.h so
> that it enables USE_LIBRESAMPLE instead of USE_LIBSAMPLERATE.
> 
> To my ears it sounds pretty good.  I'd appreciate feedback from
> anyone who is interested in resampling quality.  Please compare
> them side-by-side and see if you can tell the difference between
> libsamplerate and libresample in a blind listening test.
> 
> Everything appears to work, including TimeTracks and the Change
> Speed effect.  But please help test!
> 
> I've also had a nice chat with Dr. Julius Smith, the author of
> Resample-1.7, on which my code was based, and he's posted my
> library here:
> 
>   http://ccrma-www.stanford.edu/~jos/resample/Available_Software.html
> 
> Julius is a fan of Audacity and gave the impression that he's willing
> to lend his expertise in signal processing and filter design.  With
> his help I'm hoping to add an option to the FFT Filter effect so that
> you can optionally use FIR filter in the time-domain, which would
> be both faster and smoother than the FFT method, at the expense of
> precision in the frequency domain.

Good to know ;-)

Would it be a good idea to release pre2?

-- 
Alexandre Prokoudine
ALT Linux Documentation Team
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