I'm sorry I don't know the answer to your specific question, but I
believe that AndroidResamplerSinc code has not been qualified recently
(meaning it has not been verified for correctness, performance, audio
quality, etc.). It's probably still fine, it just hasn't been tested
recently AFAIK. If you do get it to work, please post your results
here -- it would be great to have a better sample rate converter
available than the default, and knowing the characteristics of these
and other SRCs will help in the evaluation.

On Feb 2, 5:51 pm, bincart <[email protected]> wrote:
> /*
>  * These coeficients are computed with the "fir" utility found in
>  * tools/resampler_tools
>  * TODO: A good optimization would be to transpose this matrix, to
> take
>  * better advantage of the data-cache.
>  */
>
> I found upper comment in AndroidResamplerSinc.cpp.
>
> But, I fail to find tools/resampler_tools in my android sources.
>
> Android Resampler makes some harmonic noise in case of 44.1khz ->
> 48khz up-sampling.
>
> I wanna optimize FIR setting, but I can not find optimization tool.

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