On Sat, Oct 12, 2013 at 8:22 AM, Alan Horstmann <gine...@aspect135.co.uk>wrote:
> On Saturday 12 October 2013 02:20, RJ Ryan wrote:
> > Excellent -- glad to see it's as simple as a fix to the ALSA hostapi! Is
> > anyone from the PA side interested in picking this up or should we work
> on
> > a patch? We'd like to fix this for good in our next major release (early
> > 2014?) so it would be good to try and get this into a PA release soon so
> we
> > can get it packaged in the various distros.
>
> You may be being a little hasty here; the cause has not actually been
> identified yet. We have symptoms that relate to mono channel use - but not
> when recording only (I believe?), and a discussion around *possible* issues
> with mono channel usage in Portaudio. It is not established yet that the
> mono mic problems are caused by a bug in Portaudio.
>
>
Hi Alan,
The cause was indeed identified. The line that Clemens pointed out from the
ALSA hostapi in PortAudio fully explains the observations we've seen with
this bug over the years. (for example, the screenshot you just sent out is
exactly as expected given that line of code and a device with a minimum of
2 input channels).
Cheers,
RJ
> That is why I responded hoping to get more info to characterise the problem
> carefully and track it down precisely, rather than making assumptions.
> But I
> guess my reply is stuck in Mixx-list moderation?
>
> Regards
>
> Alan
>
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