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On Sat, Apr 21, 2012 at 12:00 PM, Mark Knecht <markknecht@×××××.com> wrote: |
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> On Sat, Apr 21, 2012 at 11:24 AM, Nikos Chantziaras <realnc@×××××.com> wrote: |
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>> On 21/04/12 21:13, Mark Knecht wrote: |
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>>> |
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>>> Hi, |
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>>> Ah, for a peaceful Saturday, but I guess not this one... I'm just |
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>>> starting to investigate this but maybe someone's worked on this sort |
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>>> of thing recently? |
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>> |
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>> |
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>> Make sure the mic is selected as the "capture" source: |
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>> |
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>> * Run alsamixer in a terminal. |
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>> * Press F6 and select your sound card. |
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>> * Press F4 to get to the capture settings. |
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>> * From the available inputs, select "Mic" (left/right arrow keys) and press |
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>> space to select it as the capture source. Raise the capture volume to |
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>> maximum (up arrow key.) |
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>> * Esc. |
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>> |
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>> All of this can also be done in KMix if you're on KDE. |
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>> |
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>> |
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> |
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> Hi Nikos, |
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> Right, all done both in KMix as well as alsamixer. No change yet. |
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> Capture was already selected and volume up. I tried with Capture1 and |
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> Capture2. No change. |
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> |
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> I tried dropping back to my earlier 3.2.1-gentoo-r2 kernel but that |
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> also didn't work. However for some reason it also had a problem with |
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> the nvidia driver and to get X I had to do a modules-rebuild -X |
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> rebuild so I'm no longer sure what state that's in WRT also. Anyway, |
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> 3.2.1 boots, KDE logs in but no microphone audio. That kernel was |
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> built on 3/17 so I'm 200% certain the mix worked on that kernel 2 |
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> weeks ago. |
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> |
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> What's strange about this (to me) is that when I'm in the Skype |
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> Test Call app (darn I like that English girl in that. Where is she |
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> from?) :-) I can tap on the mic and hear the thumps in my headphones |
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> so I know the mix works. However I'm not sure if possibly the sound |
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> card isn't mixing that directly into the audio output and maybe Alsa |
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> is never hearing the mic. |
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> |
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> Stumped. Going to try the old delete asound.state thing next... |
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> |
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> Cheers, |
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> Mark |
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|
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A little more info: |
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1) If I run a YouTube video while I'm doing this then: |
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a) PCM controls YouTube volume |
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b) Master does nothing |
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|
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2) While YouTube is running, if I turn off PCM so I have no volume, |
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then I can tap on the mic and hear it. To me this means the mic audio |
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I'm hearing isn't in Alsa at all but rather it's some sort of hardware |
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mixer in the sound chip. |
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3) Muting the Front mic input in Alsa stops the mic audio I am hearing. |
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4) Modifying Front Mic Boost works as expected: 4 steps of major mic |
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gain. 0 is totally off. (Like mute on Front mic) |
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5) In my Capture settings I have front & back mic volume and boost as |
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well as a 'Digital' input and places to set the Input sources which |
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are set to Front Mic, Rear Mic & Mix. Changes here haven't effected |
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anything so far. All 4 sliders are full up. (Capture, Capture1, |
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Capture2 & Digital) |
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