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

Be be.0 at gmx.com
Thu Dec 10 03:50:11 EST 2015


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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