Re: [Alsa-user] Number of i/o-channels for a usb-class-compliant device
Florian Hanisch wrote: I am running an RME Fireface UCX in the usb-2.0-audio class-compliant mode. I can get stereo-sound but alsamixer is not working. Is there an easy way to get the number of in/out channel that the device/the alsa-driver provides ? Look into /proc/asound/card?/stream0. And if there are more than 2/2 channels, how do I activate these extra channels ? Nothing special. Try the --channels parameter of speaker-test. Regards, Clemens -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Number of i/o-channels for a usb-class-compliant device
Hi, thanks a lot! The /proc/asound/card?/stream0 indeed shows that there are 8/8 channels available. I was moreover able to fix my problem with JACK (just had to disable the D-BUS interface). Choosing the fireface as input and output device together with the alsa driver, JACK boots without any problems and 8/8 channels are available. I tested the 8 output channels using SuperCollider through JACK, they seem to work fine. Great! I did not check the input channels and latency so far. Best, Florian Quoting Clemens Ladisch cladi...@googlemail.com: Florian Hanisch wrote: I am running an RME Fireface UCX in the usb-2.0-audio class-compliant mode. I can get stereo-sound but alsamixer is not working. Is there an easy way to get the number of in/out channel that the device/the alsa-driver provides ? Look into /proc/asound/card?/stream0. And if there are more than 2/2 channels, how do I activate these extra channels ? Nothing special. Try the --channels parameter of speaker-test. Regards, Clemens -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Number of i/o-channels for a usb-class-compliant device
Hi list, I have an alsa-newbie-question: I am running an RME Fireface UCX in the usb-2.0-audio class-compliant mode. I can get stereo-sound but alsamixer is not working. Is there an easy way to get the number of in/out channel that the device/the alsa-driver provides ? And if there are more than 2/2 channels, how do I activate these extra channels ? There should be 8/8 channels available in usb-class-compliance mode, these are displayed on a mac-osx without using the RME native driver. Thanks a lot, Florian -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
