Re: [Alsa-user] human readable names for audio and midi channels
On 5/31/19 22:05, Clemens Ladisch via Alsa-user wrote: > Stefan Sauer wrote: >> when using multi channel audio interfaces, it would be awesome to be >> able to label the ports to make it easier to select the right (pair of) >> channels in the software. > ALSA has no mechanism to associate names to multiple channels belonging to > the same PCM device. > >> Likewise for multi midi interfaces (like the classic emagic amt8). > It is possible for each port to have its own name: > > $ aplaymidi -l > PortClient namePort name > ... > 40:0SC-8820SC-8820 Part A > 40:1SC-8820SC-8820 Part B > 40:2SC-8820SC-8820 MIDI > > However, only the port's owner can change the name, so the USB audio > driver would have to know about it. > >> Are there any thoughts on this to support this on the Alsa level? > These labels should survive a reboot, but are not a property of the hardware, > so they must be stored somewhere else. It is not clear who should be > responsible for that. Yes of course, eg asoundrc. > And if there were a new API, most programs would not know of it. We only have a handful of pro-audio apps, sooner or later they'll use the api. I think it would be better then each app brewing their own alias config file somewhere. Stefan > > > Regards, > Clemens > > > ___ > Alsa-user mailing list > Alsa-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-user ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] human readable names for audio and midi channels
Stefan Sauer wrote: > when using multi channel audio interfaces, it would be awesome to be > able to label the ports to make it easier to select the right (pair of) > channels in the software. ALSA has no mechanism to associate names to multiple channels belonging to the same PCM device. > Likewise for multi midi interfaces (like the classic emagic amt8). It is possible for each port to have its own name: $ aplaymidi -l PortClient namePort name ... 40:0SC-8820SC-8820 Part A 40:1SC-8820SC-8820 Part B 40:2SC-8820SC-8820 MIDI However, only the port's owner can change the name, so the USB audio driver would have to know about it. > Are there any thoughts on this to support this on the Alsa level? These labels should survive a reboot, but are not a property of the hardware, so they must be stored somewhere else. It is not clear who should be responsible for that. And if there were a new API, most programs would not know of it. Regards, Clemens ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] human readable names for audio and midi channels
hi, when using multi channel audio interfaces, it would be awesome to be able to label the ports to make it easier to select the right (pair of) channels in the software. Likewise for multi midi interfaces (like the classic emagic amt8). I know that I can add aliases in QJackctl, but those are exclusive to this app. Are there any thoughts on this to support this on the Alsa level? Stefan ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
