Re: [Discuss-gnuradio] gr-audio: add query device names?
2014-02-06 11:10 GMT+01:00 Volker Schroer : > >> Hi Volker, >> >> The idea is to enumerate using library calls, which is the right way to do >> this. >> >> Alex >> > Hi Alex, > > Yes, I know, but sometimes this does not help. Here is a list of my devices > from aplay -l: > > Karte 0: SB [HDA ATI SB], Gerät 0: ID 892 Analog [ID 892 Analog] > Sub-Geräte: 0/1 > Sub-Gerät #0: subdevice #0 > Karte 0: SB [HDA ATI SB], Gerät 1: ID 892 Digital [ID 892 Digital] > Sub-Geräte: 1/1 > Sub-Gerät #0: subdevice #0 > Karte 1: M44 [M Audio Delta 44], Gerät 0: ICE1712 multi [ICE1712 multi] > Sub-Geräte: 1/1 > Sub-Gerät #0: subdevice #0 > Karte 2: Loopback [Loopback], Gerät 0: Loopback PCM [Loopback PCM] > Sub-Geräte: 7/8 > Sub-Gerät #0: subdevice #0 > Sub-Gerät #1: subdevice #1 > Sub-Gerät #2: subdevice #2 > Sub-Gerät #3: subdevice #3 > Sub-Gerät #4: subdevice #4 > Sub-Gerät #5: subdevice #5 > Sub-Gerät #6: subdevice #6 > Sub-Gerät #7: subdevice #7 > Karte 2: Loopback [Loopback], Gerät 1: Loopback PCM [Loopback PCM] > Sub-Geräte: 8/8 > Sub-Gerät #0: subdevice #0 > Sub-Gerät #1: subdevice #1 > Sub-Gerät #2: subdevice #2 > Sub-Gerät #3: subdevice #3 > Sub-Gerät #4: subdevice #4 > Sub-Gerät #5: subdevice #5 > Sub-Gerät #6: subdevice #6 > Sub-Gerät #7: subdevice #7 > Karte 4: HDMI [HDA ATI HDMI], Gerät 3: HDMI 0 [HDMI 0] > Sub-Geräte: 1/1 > Sub-Gerät #0: subdevice #0 > > > But to use the Delta card I have to use plughw:1 as device or some other > plugin defined in my personal .asoundrc . Maybe "aplay -L" is better; however, formatted output from an application is hardly any indication of what is possible with library calls. Alex ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] gr-audio: add query device names?
Hi Volker, The idea is to enumerate using library calls, which is the right way to do this. Alex Hi Alex, Yes, I know, but sometimes this does not help. Here is a list of my devices from aplay -l: Karte 0: SB [HDA ATI SB], Gerät 0: ID 892 Analog [ID 892 Analog] Sub-Geräte: 0/1 Sub-Gerät #0: subdevice #0 Karte 0: SB [HDA ATI SB], Gerät 1: ID 892 Digital [ID 892 Digital] Sub-Geräte: 1/1 Sub-Gerät #0: subdevice #0 Karte 1: M44 [M Audio Delta 44], Gerät 0: ICE1712 multi [ICE1712 multi] Sub-Geräte: 1/1 Sub-Gerät #0: subdevice #0 Karte 2: Loopback [Loopback], Gerät 0: Loopback PCM [Loopback PCM] Sub-Geräte: 7/8 Sub-Gerät #0: subdevice #0 Sub-Gerät #1: subdevice #1 Sub-Gerät #2: subdevice #2 Sub-Gerät #3: subdevice #3 Sub-Gerät #4: subdevice #4 Sub-Gerät #5: subdevice #5 Sub-Gerät #6: subdevice #6 Sub-Gerät #7: subdevice #7 Karte 2: Loopback [Loopback], Gerät 1: Loopback PCM [Loopback PCM] Sub-Geräte: 8/8 Sub-Gerät #0: subdevice #0 Sub-Gerät #1: subdevice #1 Sub-Gerät #2: subdevice #2 Sub-Gerät #3: subdevice #3 Sub-Gerät #4: subdevice #4 Sub-Gerät #5: subdevice #5 Sub-Gerät #6: subdevice #6 Sub-Gerät #7: subdevice #7 Karte 4: HDMI [HDA ATI HDMI], Gerät 3: HDMI 0 [HDMI 0] Sub-Geräte: 1/1 Sub-Gerät #0: subdevice #0 But to use the Delta card I have to use plughw:1 as device or some other plugin defined in my personal .asoundrc . -- Volker ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] gr-audio: add query device names?
On Thu, Feb 6, 2014 at 7:33 AM, Volker Schroer wrote: > There may a problem with alsa and linux. > You can find all available cards in the file /proc/asound/cards. > > But in some cases you can't use a card directly. > For instance the Delta M44 offers 10 channels, but in many use cases you > only work with 2 channels. So you have to use plugins. > > Of course, you could list the available hardware. > Hi Volker, The idea is to enumerate using library calls, which is the right way to do this. Alex ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] gr-audio: add query device names?
There may a problem with alsa and linux. You can find all available cards in the file /proc/asound/cards. But in some cases you can't use a card directly. For instance the Delta M44 offers 10 channels, but in many use cases you only work with 2 channels. So you have to use plugins. Of course, you could list the available hardware. -- Volker Am 05.02.2014 17:43, schrieb Michael Dickens: It's all well and good to send in an audio device name to the gr-audio sink/source, and then see if that device name matches anything / works / is found. In my fixes to gr-audio-osx, if the audio device was specified but not found, the code will print out a list of available device names and use the default device. This got me thinking: Why not change the gr-audio API to include a method that returns all known device names (output ones for sink and input ones for source)? I can easily do it on OSX native, and Alex Csete has a means for doing it on PortAudio; I have no idea how difficult this would be for any other audio option, but I generally like the idea. What do others think? - MLD -- Michael Dickens, OSX Programmer Ettus Research Technical Support Email: supp...@ettus.com Web: http://www.ettus.com ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] gr-audio: add query device names?
It's all well and good to send in an audio device name to the gr-audio sink/source, and then see if that device name matches anything / works / is found. In my fixes to gr-audio-osx, if the audio device was specified but not found, the code will print out a list of available device names and use the default device. This got me thinking: Why not change the gr-audio API to include a method that returns all known device names (output ones for sink and input ones for source)? I can easily do it on OSX native, and Alex Csete has a means for doing it on PortAudio; I have no idea how difficult this would be for any other audio option, but I generally like the idea. What do others think? - MLD -- Michael Dickens, OSX Programmer Ettus Research Technical Support Email: supp...@ettus.com Web: http://www.ettus.com ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
