[ecasound] Re: [linux-audio-user] 24 bit replacement for SOX

Eric Dantan Rzewnicki rzewnickie at rfa.org
Tue Dec 21 11:08:58 EST 2004

On Tue, Dec 21, 2004 at 04:12:48AM +0200, Kai Vehmanen wrote:
> Hello all,
> On Fri, 17 Dec 2004, Jesse Chappell wrote:
> >> I've received some bug reports about 
> >> resampling with the ecasound+libsamplerate combo, and the 44.1<->48 
> > Kai, I did notice that the SRC code in ecasound uses the simple
> > API of libsamplerate, but it expects to use it blockwise with
> > a continuous audio stream.  The more advanced APIs maintain state
> > between calls that I think are necessary when using it with a stream.
> thank you for pointing this out to me -- this was indeed causing problems.
> If anyone wants to help in testing, please try the snapshot at:
> http://ecasound.seul.org/download/snapshots/ecasound-2.3.6-cvs-20041221.tar.gz
> # the basic syntax is:
> ecasound -f:16,2,44100 -i resample,auto,foo96khz.wav -o alsa 
> # with samplerate's 'SRC_SINC_BEST_QUALITY' quality
> ecasound -f:16,2,44100 -i resample-hq,auto,foo96khz.wav -o alsa 
> Where 16(bit), 2(ch) and 44100(Hz) are the target audio parameters. This
> should work with any ALSA/OSS, JACK, wav/aiff, ogg/mp3/flac/etc output.


Will this also affect the -ei pitch shifter effect?

-Eric Rz.

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