Pulse Audio Sound Levels

[Ric Moore]

On 03/14/2013 10:13 PM, Basil Chupin wrote:
> On 15/03/13 08:03, Ric Moore wrote:
>> On 03/14/2013 10:25 AM, Basil Chupin wrote:
>>> On 15/03/13 00:14, Lanoxx wrote:
>>>>
>>>> On 14/03/13 01:24, Ric Moore wrote:
>>>>> On 03/13/2013 07:35 PM, Lanoxx wrote:
>>>>>>
>>>>>> On 13/03/13 21:23, Ric Moore wrote:
>>>>>
>>>>>>> What does alsamixer show you?? Maybe the aux input is muted there?
>>>>>>> Happens. Ric
>>>>>>>
>>>>>> Here is what I do:
>>>>>> alsamixer -> F6 -> "USB Multimedia Audio Device" -> F4 (Capture):
>>>>>> I can
>>>>>> see three categories: "Line", "Mic" and "S/PDIF in" the first two
>>>>>> (line
>>>>>> and mic are set to 94), the "S/PDIF" section does not have a
>>>>>> volume bar
>>>>>> to change. Additinally the all sections show "L Capture R" in red
>>>>>> letters.
>>>>>>
>>>>>> When I open pulse audio in the recording tab for the Usb sound card I
>>>>>> can also choose between Line and Microphone and when I choose Line
>>>>>> and
>>>>>> connect the radio, then I can see the sound bar juming around
>>>>>> 80%-90%,
>>>>>> when I unplug the cable, then the bar drops to 0. But still no sound.
>>>>>> Any further ideas?
>>>>> Yes, while you see the pulsing record level, you know you have input.
>>>>> So, while the radio is plugged in, chose "playback" and the playback
>>>>> device should have a drop-down selection. It's not always readily
>>>>> apparent. But, click on the device in use and you should see a
>>>>> selection. Pick the output you want. See if that works.
>>>> Here are two screen shots from my current configuration. I'm not sure
>>>> what else I could activate in alsamixer [1]. The second section allows
>>>> me to choose between "Line", "Mic" and "S/PDIF" and changing it has no
>>>> effect to the ouput. The other sections are all on maximum. In
>>>> Puluseaudio [2] in the Port dropdown i can only choose "Speakers" and
>>>> the sound is already at 100% and not muted.
>>>>
>>>> [1]
>>>> http://imageshack.us/photo/my-images/823/screenshotfrom201303141.png/
>>>> [2]
>>>> http://imageshack.us/photo/my-images/15/screenshotfrom201303141.png/
>>>
>>> To begin with, Line and Mic are not activated.
>>>
>>> The only active channels are Speaker and some mysterious and blank,
>>> black space on the right-hand side.
>>
>>
>> Doesn't he also need to turn OFF the HDMI output since that is not in
>> use??
>
> Having it on even though not being used won't do anything any harm
> UNLESS there is some incampatability with some other channel. Which is
> why I told the OP to always use F6 to see ALL the channels, and if
> something is not working correctly then switch on/off channels until it
> all works.
>
> I found that different cards even from the same manufacturer (I always
> use Creative Sound Blaster) need different channels to be on or off
> before it all works.
>
>> Do that in configuration in pavucontrol, use the HDMI drop down box
>> set to none or off ... Ric
>
> As we know, pulse sits on top of alsa. You first get alsa to
> activate/deactivate channels after which you can then use pulse. I mean,
> it's no use trying to get pulse to turn up the volume on a channel when
> that channel is not made active by alsa.


Exactly... isn't that what I said before? But, pulse will try to use a 
device you have configured, so if the HDMI is not in use, best turn it 
off, so pulse never attempts to use it. :) Ric


-- 
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
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