update: sound recorder does not playback audio until saved

[Michaël Van Dorpe]

I have a 20" intel core duo iMac. The microphone does not work under Feisty.
I tried the "sound recorder" program. Let me know what other information I should include in this bug report. Thanks.

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UPDATE:
the sound recorder program does not playback audio in real time. From what I've found the input needs to be saved and then played back to see if audio input has happened. This has led to a lot of these issues with microphone bug reports. To better test whether audio input is being recognized you could use a command such as:

"arecord -vv /dev/null"

Description updated to better reflect the nature of the bug. More of a sound recorder problem vs a microphone problem with apple hardware.

[Brian Murray (brian-murray)]

Thanks for your bug report. Could you please add the output of 'lspci -vv', 'lspci -vvn', 'dmesg', 'amixer' and 'asoundconf list' to your bug reports as attachments? Thanks in advance.

[Timothy Smith (tas50)]

Can someone test this with the newest nightly of Feisty. Microphone issues have been resolved recently on Macbooks and that may have fixed this issue as well.

[Christer Edwards (christer.edwards)]

As of May 10 '07 I still don't have support for the on-board or line-in microphone on my C2D macbook. I'm using Feisty with all available updates.

There is a suggested fix found here if that helps..
http://gentoo-wiki.com/HARDWARE_Apple_MacBook#Microphone

[Christer Edwards (christer.edwards)]

Later testing shows that the mic *does* work but the testing application of 'Sound Recorder' seems faulty. I used the suggestion here:

http://ubuntuforums.org/showpost.php?p=2635207&postcount=5

...and the audio appears to be seem by the hardware.

[Brian Murray (brian-murray)]

I understand that the problem is with the sound recorder program but am not sure which one you specifically mean. Do you use the Gnome desktop environment or KDE? Thanks in advance.

[Christer Edwards (christer.edwards)]

I use the gnome desktop environment.

[Brian Murray (brian-murray)]

Christer could you update the bug title and description with the problems with sound recorder? Thanks in advance.

[Andrea Garbarini (garba)]

I too believed that the problem lied with my mic, but i then realized the problem actually lies with the sound recorded in Gnome. The problem is simple: you can't play back the audio stream unless it's saved first, actually you can click the play button but you'll get silence in return. I guess a lot of people have stumbled upon this issue and reported their mic doesn't work. What's even more annoying is that choosing "save" instead of "save as" leads to a "invalid parameters" error.

[Jérôme Guelfucci (jerome-guelfucci-deactivatedaccount)]

This is a duplicate of bug #92879.