Subject: Re: [linux-audio-user] Wave file conversion (multi-mono->stereo, then downsample/downsize, then dither)
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Fri Sep 10 2004 - 11:48:35 EEST
On Fri, Sep 10, 2004 at 01:13:16 +0300, Kai Vehmanen wrote:
> On Thu, 9 Sep 2004, Mark Knecht wrote:
>
> > How would I be sure that my emerge of ecasound uses libsamplerate
> > capabilities? Can this be observed at runtime? Or in the output files
> > somehow? Anywhere else?
>
> ldd `which ecasound` |grep libsamplerate
>
> > Anyway, If I'm going to downsize from 24-bits to 16-bits then I want
> > to add dithering, but I see no mention of dithering in man ecasound. I
> > know jack has an option to dither it's outputs, but from some dark
> > remote part of my memory I seem to remember that this only effects the
> > output going to the sound card and not what's going to a file. Comments
> > anyone?
>
> Unfortunately no. Adding dithering has been on the todo-list for ages,
> but still not implemented. :(
I'm in the process of making a (trivial) libgdither that has a simple API
to it. Currently it works but I want to add a couple of API features. Its
based off the code in ardour, but much faster and there some bugfixes.
- Steve
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