On Sunday, 14 January 2018 17:40:14 GMT Andrew wrote:
> The IDs in lsusb won't help, they are the vendor ID and device ID for
> that type of card, not that instance in your machine.
They would if I could tie the ID to the hw: channel in aplay, because I know
which ID is
plugged into the tower and which into the nave.
That's what I've been unable to do.
> It looks like aplay -D can use the whole device string, eg.
> "plughw:CARD=Device,DEV=0" but mpg123 can't...
>
> I've done some more experimenting and I can see how to do it... I think...
> First list devices with 'aplay -l' (lowercase). On here I get this:
>
> card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 2: Device [USB Sound Device], device 0: USB Audio [USB Audio]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
>
> There's three cards here, and each has one device.
> The middle one (HDMI), is card 1, device 3. I can play through that with:
> mpg123 -o alsa -a hw:1,3 /path/to/audio
>
> Or if I want the USB device:
> mpg123 -o alsa -a hw:2,0 /path/to/audio
>
> If I wanted the internal card that would be hw:0,0, but there's nothing
> plugged in to it right now... :)
Yes. I understand that. I posted my version of aplay -l at the Raspberry Pi
Forum, but here
it is again:
terry@OptiPlex:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 4: Device_1 [USB PnP Sound Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
and here is what I got just now, with the same adaptors plugged into the same
USB ports:
*terry@OptiPlex*:*~*$ aplay -l
That's my problem.
--
Terry Coles
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