[linux-audio-user] questions regarding SBLive multichannel use

[Russell Hanaghan]

Rick Wright wrote:

> Lee Revell wrote:
>
>> On Sat, 2006-01-14 at 11:56 -0500, Dave Phillips wrote:
>>  
>>
>>> Greetings:
>>>
>>>  This question is directed to Lee Revell and anyone who is using or 
>>> has tried to use the multichannel capability for the ALSA SBLive 
>>> module.
>>>
>>>  When I select multichannel duplex operation in QJackCtl I get 16 
>>> channels for input and two channels for output. Is that the default 
>>> I/O channel arrangement ?
>>>
>>>   
>>
>>
>> You should get 16 in and 16 out.  You have to individually select the
>> multichannel devices for input (hw:x,2) and output (hw:x,3).
>>  
>>
> What Lee said.
>
> I am using the EMU10K1 driver on both an Audigy2 EX and ZS models.  
> These cards both have 6 analog inputs (3 stereo lines) and the EX is 
> 6.1 out (7 analog outputs) and the ZS is 7.1 out (8 analog outputs).  
> I have worked out the mapping from the pcm_capture and pcm_playback 
> ports to the physical analog inputs and outputs which I will share if 
> you are interested.
>
> The only problem I found is that the alsa-mixer volume control sliders 
> are left-right switched for all of the stereo output pairs.  I mean, 
> if you plug a standard 1/8" stereo-to-RCA cable into the stereo output 
> on the card, the appropriate left slider controls the signal on the 
> red RCA plug - which is typically the right channel - and vice versa.  
> This is true for all stereo output pairs.
>
> I reported this bug to the ALSA bugtracker about a year ago 
> (https://bugtrack.alsa-project.org/alsa-bug/view.php?id=904), but the 
> behavior persists....
>
> Rick
>
>
Does this work on older SBlive 5.1 cards as well?

Thanks
R~