@Elaye wrote:
Hello,
I have an openFrameworks app and two usb audio sound cards to which I send two different sounds to play. It works well on Mac OS X but doesn't work on the Raspberry Pi 2, and when I set the device to output to the second sound card I have the following error:[notice ] ofRtAudioSoundStream: device 0 hw:USB PnP Sound Device,0 [notice ] ofRtAudioSoundStream: ----* default ----* [notice ] ofRtAudioSoundStream: maximum output channels 2 [notice ] ofRtAudioSoundStream: maximum input channels 1 [notice ] ofRtAudioSoundStream: ----------------------------------------- [notice ] ofRtAudioSoundStream: device 1 hw:USB PnP Sound Device,0 [notice ] ofRtAudioSoundStream: maximum output channels 2 [notice ] ofRtAudioSoundStream: maximum input channels 1 [notice ] ofRtAudioSoundStream: ----------------------------------------- [notice ] ofRtAudioSoundStream: device 2 hw:bcm2835 ALSA,0 [notice ] ofRtAudioSoundStream: maximum output channels 2 [notice ] ofRtAudioSoundStream: maximum input channels 0 [notice ] ofRtAudioSoundStream: ----------------------------------------- [notice ] ofRtAudioSoundStream: device 3 hw:bcm2835 ALSA,1 [notice ] ofRtAudioSoundStream: maximum output channels 2 [notice ] ofRtAudioSoundStream: maximum input channels 0 [notice ] ofRtAudioSoundStream: ----------------------------------------- [notice ] ofRtAudioSoundStream: device 4 default [notice ] ofRtAudioSoundStream: maximum output channels 10000 [notice ] ofRtAudioSoundStream: maximum input channels 10000 [notice ] ofRtAudioSoundStream: ----------------------------------------- Choose a device for output 1: 0 Choose a device for output 2: 1 RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (hw:0,0), Device or resource busy. ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (default), Device or resource busy. RtApiAlsa::probeDeviceOpen: pcm device (hw:0,0) won't open for output.A weird thing is that it seems to always select the
hw:0,0device. Have you any ideas of what might cause this?
Thanks in advance!
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