Audio input

[Jeffrey Ross]

Michael Wiktowy wrote:
> On 12/15/06, Michael Wiktowy <michael.wiktowy at gmail.com> wrote:
>> On 12/14/06, Jeffrey Ross <jeff at bubble.org> wrote:
>> > ok, I try running amixer or alsamixer on the command line with no
>> > arguments and I get the following errors:
>> >
>> > # alsamixer
>> >
>> > alsamixer: function snd_mixer_load failed: Invalid argument
>> >
>> > # amixer info
>> > Card default 'Intel'/'HDA Intel at 0x90320000 irq 90'
>> >   Mixer name    : 'SigmaTel STAC9227'
>> >   Components    : 'HDA:83847618'
>> >   Controls      : 21
>> > amixer: Mixer load default error: Invalid argument
>> > so it looks like something not working with the alsa drivers.  So 
>> where
>> > do I go from here?
>>
>> I get similar errors when I run those commands as a regular user ...
>> try running them as root user.
>
> More specifically, once you get alsamixer running, use Tab to get to
> your capture devices, left/right arrows to get to the one you want to
> enable/disable and space bar to toggle it on and off and up/down to
> set the capture levels.
>
> You might have to experiment a bit. Some cards have a Master Capture
> that controls all the master gain that needs to be enabled and then
> you enable the specific sources after that. Not sure if your card
> needs this or will handle multiple capture sources so you are best to
> just enable the one you need or that one and the master and see how
> that goes.
>
> Good luck.
>
> /Mike
>

The commands were run as root.  I ended up tossing in an old sound card 
that I had laying around, for my purposes it is more than adequate and 
seems to work fine.