turn up volume on soundcard software

[Mr Chris Aitken]

Lennart Sorensen wrote:
> On Thu, Feb 18, 2010 at 03:13:51PM -0500, Mr Chris Aitken wrote:
>   
>> You're thinking the other way around. I'm simply coming out of the 1/8 "  
>> green (usually means spkr) port.
>>     
>
> It's supposed to mean speaker/headphone at least.
>
>   
>> I don't think I have a line out. Judging form the port colours (red,  
>> green, blue) and their icons (microphone, mus. note w arrow out, mus.  
>> note w arrow in) I think I only have mic, spkr out, and line in.
>>     
>
> There is never a speaker out, only line level (or headphone).  A PC
> can't drive speakers directly (other than headphones), at least not in
> a useful way.
>
>   
>> Well, it's the noise I want to lower, not to raise the volume per se. I  
>> think the engineer that advised me (though not for linux, unfortunately)  
>> was hoping that if I up the volume on the card I would get less noise.  
>> Remember noise and signal are always competing for the same territory.  
>> Hence, signal-to-noise ratio.
>>     
>
> True.  Of course on my sb live, going above about 80% causes clipping
> (someone did a stupid design apparently).  That's rather unusual though.
>
>   
>> I could mute them. I only use this computer to playback from youtube. I  
>> don't record to it. I have a proper setup on another computer for  
>> recording. So, how do I mute unwanted sliders in alsamixer?
>>     
>
> In alsamixer you can switch to capture settings using F4 (or tab).
> You can then mute the inputs you don't need.
>   

Yeah, tab gets me to capture, but I don't know the command to mute a 
slider. Up and down arrows only raise and lower level (to 00) but don't 
change it to 'MM' (which, I assume, is mute).

Chris

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