Fwd: [OLPC-devel] Geode GIT Tree

[Christopher Blizzard]

OK!  We've figured something out.  We've been able to record using a 
line connection instead of a mic.  So we suspect this is a line vs. mic 
problem.  Have you tried a mic without a line level output?

--Chris

Jaya Kumar wrote:
> On 6/16/06, Christopher Blizzard <blizzard at redhat.com> wrote:
>> Just FYI, I tried these patches against our kernel (which from the
>> standpoint of sound is 2.6.16-rc5) and it didn't make a difference.
>> We're still not able to record audio in.
> 
> Please let me know exactly with what and how you are testing, what
> apps, what version of alsa. Are you using arecord as per the test that
> works for me? In what way is the failure occuring? Any observations
> would be very useful. I've pasted my previous note about this in case
> it was missed:
> 
> ----------
> 
> I'd highly recommend trying the mic in test procedure I posted,
> appended below before doing anything else like switching kernels. If
> that test procedure does not work for you, then you know it's a
> difference in our test environments. If it does work, then you know
> it's a new issue exposed by your application. In which case, please
> let me know the info I asked about below.
> 
> jaya
> 
>> On Thu, 2006-06-15 at 11:37 +0800, Jaya Kumar wrote:
>> > Here's my test procedure:
>> >
>> > insmod /tree/linux-2.6.17-rc5/sound/pci/cs5535audio/snd-cs5535audio.ko
>> > amixer set PCM 100 on && amixer set Master 100 on && amixer set Mic
>> > 100 on && amixer set 'Mic Boost (+20dB)' on
>> > arecord -d 10 > /tmp/out.wav
>> > # talk for 10 seconds at this point
>> > aplay /tmp/out.wav
>> > # plays back fine for me
>> >
>> > I assume your application may be different. Can you see if there are
>> > any error messages in dmesg. Which source is your app reading from?
>> > What levels are your mixer controls set to? What do you hear on
>> > playback?
>> >
>> > jaya
>> >