Re: no .asoundrc

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On 08/16/2012 04:29 PM, Anders Genell wrote:
>
>
> 16 aug 2012 kl. 19:07 skrev Doug <dmcgarrett@xxxxxxxxxxxxx 
> <mailto:dmcgarrett@xxxxxxxxxxxxx>>:
>
>> I'm running PCLinuxOS, and it does not come with .asoundrc.  Some time
>> ago I asked here for some help to get
>> sound to come out of BOTH the Intel on-board sound decoder and the
>> GeForce NVidia HDMI port at the same
>> time all the time. (The NVidia card has its own sound decoder.)  If I
>> had .asoundrc, would that help, and if so, what
>> should the script be?
>>
>> --Thanx--doug
>
>>
>
> Dear Doug!
>
> Below are the hints I could manage to scramble together during your 
> last troubleshooting,
>  - I don't know if they are still useful?
>
> Regards,
> Anders
>
>
>> I found a version of it here:
>> http://wiki.linuxquestions.org/wiki/M-Audio_Quattro
>> although it mentions /root/.asoundrc as proper placement which I 
>> would not recommend.
>>
>> The idea is to create a "multi" device from your two hardware devices 
>> (e.g. hw:0,0 and hw:1,0) as described for the Quattro. Then create a 
>> "plug" device for handling automatic conversion (your software might 
>> not support the precise format needed by the "multi" device). In the 
>> example there is a routing table for the "plug" device consisting of 
>> expressions like "ttable.0.0 1;"
>> Those expression mean something like "route input nr 0 to output nr 0 
>> with level 1". Channels are numbered from 0. By doing something like
>> ttable.0.0 1;
>> ttable.1.1 1;
>> ttable.0.2 1;
>> ttable.1.3 1;
>> you duplicate what is coming on the first two channels from your 
>> software to the two output channel pairs. If you have setup the 
>> "multi" device properly that would mean sound out on both devices. 
>> There are a number of pitfalls that may need to be avoided, but give 
>> it a go and shout back if you get stuck!
>>
>> Regards,
>> /A
>>
/snip/

I am still kind of snowed by all this, as I have been all along.  Do you 
suggest that I just copy the M-Audio_Quattro file, just modifying the 
ttable lines iaw with your suggestion?  And call it .asoundrc? Or do 
something else?
Do I need to do anything about a jack input, and if so, do I need a 
script for that?
I'm not sure what Quattro is/was--I found some kind of usb audio box on 
Google, but I don't think that's involved, and some other reference to 
some Quattro hw or sw that runs on a Mac.

I will try and add an /etc/.asoundrc with the ttables modified as you 
indicate, and see what happens.  If things get worse I can always rename 
the file to something innocuous.

If it is of any use to you, here is my aplay -l output:

doug@Linux1 ~]$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC662 rev1 Digital [ALC662 rev1 
Digital]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

Sorry that I'm such a dunce.  OTOH, I can't be the only one who ever 
wanted to do this.  It ought to be built in to the kernel!
Since it's child's play to get two video screens, why is it so hard to 
get two audio outputs? (Granted, the two videos come
out of the same card.)

Thank you for your patience!  --doug



>> 23 jul 2012 kl. 18:58 skrev Doug <dmcgarrett@xxxxxxxxxxxxx 
>> <mailto:dmcgarrett@xxxxxxxxxxxxx>>:
>>
>>> On 07/23/2012 06:19 AM, Anders Genell wrote:
>>>> You put it in the alsa settings file, which is either ~/.asoundrc 
>>>> if you want setting to apply only to one user (namely you) or 
>>>> /etc/asound.conf if you want system wide settings. The latter needs 
>>>> root access. It may be that neither of them exists in which case 
>>>> you have to create them e.g. by saving the proposed setting into a 
>>>> new file.
>>>>
>>>> I have not tested 'copy' myself but there is another function in 
>>>> alsa which allows syncing of multiple sound cards, called 'multi'. 
>>>> I have used an excellent how-to to get an m-audio Quattro USB 
>>>> running on alsa that uses 'multi' - I'll see if I can dig up the 
>>>> link...
>>>>
>>>> /Anders
>>>>
>>> Thank you, Anders.  I would really appreciate it you can find it.
>>>
>>> --doug


-- 
Blessed are the peacekeepers...for they shall be shot at from both sides. --A.M. Greeley


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