[Portaudio] using all channels of class compliant RME Babyface Pro USB audio interface

Alan Horstmann gineera at aspect135.co.uk
Thu Dec 10 04:45:27 EST 2015


Can you show the Mixxx debug output in this case, like in the original post, 
please.

Regards

Alan

On Thursday 10 December 2015 08:50, Be wrote:
> I already tried that. The same issue happened.
>
> On 12/10/2015 02:53 AM, Alan Horstmann wrote:
> > Just a quick reply, in the middle of other things..
> >
> > The 'hw:' devices/alsa-pcms require the correct number of channels, and
> > format etc.  As a test, set an env variable
> > 	export PA_ALSA_PLUGHW=1
> > and run Mixxx (from that terminal or environment).  The pcm should list
> > as 'plughw:' and will open any number of channels.  This may be the
> > issue.  It is what I have been addressing in the Portaudio branch
> > 'Alsa-experimental'.
> >
> > Give it a try and report back, please.
> >
> > Regards
> >
> > Alan
> >
> > On Thursday 10 December 2015 08:37, Be wrote:
> >> No, only channels 1-4. Channels 1-2 are the main XLR outputs, channels
> >> 3-4 are the headphone outputs, channels 5-12 are the ADAT outputs (or
> >> 5-6 for SPDIF).
> >>
> >> On 12/10/2015 02:36 AM, Ross Bencina wrote:
> >>> Sorry, seems that my message got truncated. My question was:
> >>>
> >>> Did you try to open all 12 channels?
> >>>
> >>> Ross.
> >>>
> >>> On 10/12/2015 7:22 PM, Ross Bencina wrote:
> >>>> Hi,
> >>>>
> >>>> On 10/12/2015 5:37 PM, Be wrote:
> >>>>> Debug [Main]: SoundManager::setupDevices()
> >>>>> Debug [Main]: SoundDevicePortAudio::open() "2, Babyface Pro
> >>>>> (70785713): USB Audio (hw:1,0)"
> >>>>> Debug [Main]: framesPerBuffer: 256
> >>>>> Debug [Main]: Requested sample rate:  44100 Hz, latency: 5.80499 ms
> >>>>> Debug [Main]: Output channels: 4 | Input channels: 0
> >>>>> Debug [Main]: Opening stream with id 2
> >>>
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