[PLUG-AV] Moodle video review

[Euan de Kock]

I add the following option in my alsa.conf file.

Under gentoo this sits in /etc/modprobe.d - ymmv.


/*options snd-usb-audio index=2,3,4,5,6,7,8*/

This forces USB devices to be allocated from device id 2 through to 8.

I need to do this as I typically have two or three USB MIDI devices
connected that are also treated as USB audio devices. I also have two
onboard NVidia devices that I want always see at 0 and 1.

We currently plug in a USB headset, and will soon be plugging in USB
MIDI Tally Light devices too, so we will need the comma separated list too.

As an additional level of assurance, the following bash script should
also detect our correct sound card. Set SND_NAME to the device name we
are expecting to use - cat /proc/asound/cards will show them all.

/*SND_NAME="NVidia"

SND_DEV=`egrep "\[${SND_NAME}[ ]*\]" /proc/asound/cards | awk '{ print
"hw:"$1 }'`

echo Using $SND_DEV as our ALSA device*/

Regards,

Euan.



On 02/15/12 14:56, Jason Nicholls wrote:
>
>     We need to setup a better process for starting all the services,
>     and a means to actually monitor in realtime what is being
>     recorded/streamed.
>
>
> Yeah that was always the intent once things stabilized a bit but that
> hasn't happened yet thanks to changing equipment, flaky software (i.e.
> fw dying / needing human fixing), software updates, and boxes breaking
> :( Still, we can probably do better.
>
> It would be nice with some more reliable equipment - James any
> progress on the grant!??!?!?!
>
>  
>
>     Also the alsa capture script needs to be reworked to always use
>     the correct device. We can configure alsa to force the internal
>     card to always get a fixed id, our usea name based lookup.
>
>
> Ah this may have been caused by having the USB headset plugged in at
> boot? Unfortunately it seems to bump the onboard USB audio...
>
>  
>
>     I have a few ideas that I'll try and develop further, but I'd
>     welcome any suggestions. James I may want to grab the av2 box and
>     a camera for a bit to try out some stuff. I'll give you a call
>     later on that.
>
>
> I don't think the setup process etc... has been updated since I last
> touched it. I think that's the place to start and then we can look at
> ways to automate bits.
> http://www.plug.org.au/projects/video/setupprocedure
>
>
>
> Jason Nicholls
> jason at mindsocket.com.au <mailto:jason at mindsocket.com.au>
> 0430 314 857
>

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