[pulseaudio-discuss] Fwd: Pulse Audio Sample Cache & resampling

[Erik de Castro Lopo]

Erik de Castro Lopo wrote:

> I've done some testing and for resampling 8 seconds of float data
> from 96kHz to 44.1kHz I measured the following times:

I've just updated my figures:

   Speex resampler quality 5  : 0m0.611s
   Speex resampler quality 10 : 0m2.663s
   SRC fastest Sinc           : 0m0.562s
   SRC medium Sinc            : 0m1.124s
   SRC best Sinc              : 0m3.773s

> I've got some preliminary spectrograms here:

And now provide separate spectrograms for the speex resampler at
quality 5 and 10:

    http://www.mega-nerd.com/tmp/speex_resampled_q10.png
    http://www.mega-nerd.com/tmp/speex_resampled_q5.png

>     http://www.mega-nerd.com/tmp/SRC_best_sinc.png
>     http://www.mega-nerd.com/tmp/SRC_medium_sinc.png
>     http://www.mega-nerd.com/tmp/SRC_fastest_sinc.png


Cheers,
Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo
+-----------------------------------------------------------+
"Nearly a third of British Muslims, 32 per cent, are far more censorious,
believing that "Western society is decadent and immoral and that Muslims
should seek to bring it to an end"."
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