[Openal] Re: Openal Digest, Vol 31, Issue 7

[Chris Robinson]

On Sunday 26 October 2008 03:31:23 pm Daniel Chaves Toscano Dantas wrote:
> Microfone input works well for all them but line in is not
> working yet for none of the devices listed.
>
> arecord -l produces the following output:
>
> **** List of CAPTURE Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC662 Analog [ALC662
> Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0

If you run "alsamixer -V capture", does it have a field for the input source? 
If so, can you change that to Line In?

> openalrc looks like:
>
> (define devices '(alsa))
> (define alsa-out-device "default")
>
> And i added the line you suggested, so now it is:
>
> (define devices '(alsa))
> (define alsa-out-device "default")
> [alsa]
> default = plughw:0,0

~/.openalrc is the old configuration file for the SI. OpenAL Soft will open it 
if ~/.alsoft doesn't exist, but it won't understand the old options. You're 
better off putting the new lines into ~/.alsoftrc

> But unfortunately it did not produced sound output for line in...
> The OS mixer plays the line in input so I can only conclude that something
> is blocking openal from capturing audio from this input. Microphone works
> perfectly well...

I have a feeling opening the ALSA device will make it use whatever is listed 
for the input source by default. It would probably need a bit more trickery 
to make OpenAL Soft force the device open using Mic or Line-in (and 
unfortunately the ALSA docs aren't very good to look through to figure it 
out).