Re: dither

Kai Vehmanen <[email protected]> Tue, 18 Aug 2015 08:34:53 +0300 (EEST)
Newsgroups gmane.comp.audio.ecasound.general
Message-ID <[email protected]>
Hi,

On Thu, 13 Aug 2015, rtaylor wrote:

> I tried Joel's suggestion (-o:sndfile,output.wav) to force using
> libsndfile for writing.  There is no sign of dither in the output. I
> updated my article to include the output spectrum with libsndfile:
>
> http://rtaylor.sites.tru.ca/2015/08/12/dither-and-ecasound/
>
> I glanced at the libsndfile code, and although there are dither code
> stubs it appears they don't actually do anything.  Or am I on glue, and
> maybe ecasound just doesn't enable the dither flag in libsndfile?

you are absolutely right. Ecasound is not using SFC_SET_DITHER_ON_WRITE 
correctly to change the default, and thus dither is not applied.

I'll queue this for 2.9.2 as this is a big gap.

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