[Speex-dev] Down Convertion from 32Khz to 16Khz

Keith Kyzivat kamaji at gmail.com
Sat Jun 26 09:44:26 PDT 2010

Speexdsp library included with speex has a good resampler you can use  
for the purpose. You can find the headers in speex/speex_resampler.h,  
and source in speex/resample.c

On Jun 26, 2010, at 9:50, nir elkayam <nir.elkayam at gmail.com> wrote:

> hi
> on my device i can sample only at 32khz and want to use speex at  
> 16khz so i need to down-convert the input signal by factor of 2.
> does anyone provide me a reference to some code that does that? are  
> there any trick to do that?
> i tried to add to subsequent sample but the result was very bad.
> what are the requrment from a decimation filter for audio?
> thanks,
> nir
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