Re: [linux-audio-user] emu10k1 multichannel support

Re: [linux-audio-user] emu10k1 multichannel support

[Shayne O'Connor]

Lee Revell wrote:

>On Mon, 2005-01-31 at 11:56 +1100, Shayne O'Connor wrote:
>  
>
>>using "Playback Only", i am able to get down to 64 frames/periods when
>>using Mixxx - got a couple of xruns in a half-hour session (this was
>>with network running azureus and some other stuff).
>>
>>not sure if you're aware, but the latest patch is this one:
>>
>>http://www.alsa-project.org/~rlrevell/emu10k1-multichannel-v007.patch
>>
>>    
>>
>
>Actually I just remembered I posted a newer version.  This connects the
>external inputs to the multichannel capture device.  The JACK capture
>ports should correspond exactly to the default kX ASIO capture channels
>(1,2 is Line/Mic, 9,10 is Line2/Mic2, etc),  You can record from all
>inputs at once, so with a LiveDrive you can record 4 or 6 analog inputs.
>
>http://www.alsa-project.org/~rlrevell/emu10k1-multichannel-v008.patch
>
>  
>
i'm sure i applied the patch correctly, but does this get rid of the
following problem? :

>The last version I posted had a stupid bug where it captured
>the 16 FX buses instead of the 16 external inputs like I had intended.
>So you could only capture what you were playing back.
>
(btw - with this patch, i'm sure i've always been able to record from
the inputs *and* playback - the only problem is seperating the two so as
to only record the inputs through the ac97 codec, and not the playback
as well)

>>i'm not sure if this fixes the wavetabel synth, though - i still can't
>>get any sounds from the sb live onboard synth .... i'm gonna report back
>>to lee on the alsa-devel list, as that is probly the best place for
>>testing results, bug reports etc ...
>>    
>>
>
>This is the first I have heard of it.  The wavetable problem should have
>been fixed a while ago.  Please report it on alsa-devel.
>  
>
my boo-boo - somewhere along the way my sfxload script got knocked out
of commission ... all is good now :)

shayne

ps - i'm sending this to alsa-devel as well, as it is probly more
appropriate there?


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Re: [linux-audio-user] emu10k1 multichannel support

[Lee Revell]

On Mon, 2005-01-31 at 20:53 +1100, Shayne O'Connor wrote:
> Lee Revell wrote:
> 
> >On Mon, 2005-01-31 at 11:56 +1100, Shayne O'Connor wrote:
> >  
> >
> >>using "Playback Only", i am able to get down to 64 frames/periods when
> >>using Mixxx - got a couple of xruns in a half-hour session (this was
> >>with network running azureus and some other stuff).
> >>
> >>not sure if you're aware, but the latest patch is this one:
> >>
> >>http://www.alsa-project.org/~rlrevell/emu10k1-multichannel-v007.patch
> >>
> >>    
> >>
> >
> >Actually I just remembered I posted a newer version.  This connects the
> >external inputs to the multichannel capture device.  The JACK capture
> >ports should correspond exactly to the default kX ASIO capture channels
> >(1,2 is Line/Mic, 9,10 is Line2/Mic2, etc),  You can record from all
> >inputs at once, so with a LiveDrive you can record 4 or 6 analog inputs.
> >
> >http://www.alsa-project.org/~rlrevell/emu10k1-multichannel-v008.patch
> >
> >  
> >
> i'm sure i applied the patch correctly, but does this get rid of the
> following problem? :
> 
> >The last version I posted had a stupid bug where it captured
> >the 16 FX buses instead of the 16 external inputs like I had intended.
> >So you could only capture what you were playing back.
> >
> (btw - with this patch, i'm sure i've always been able to record from
> the inputs *and* playback - the only problem is seperating the two so as
> to only record the inputs through the ac97 codec, and not the playback
> as well)

Yes version 008 should fix that problem.  Please report it on alsa-devel
if you still have the problem with playback and capture being mixed.

Lee



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Re: Re: [linux-audio-user] emu10k1 multichannel support

[Shayne O'Connor]

Shayne O'Connor wrote:

>i'm sure i applied the patch correctly, but does this get rid of the
>following problem? :
>
>  
>
>>The last version I posted had a stupid bug where it captured
>>the 16 FX buses instead of the 16 external inputs like I had intended.
>>So you could only capture what you were playing back.
>>
>>    
>>
>(btw - with this patch, i'm sure i've always been able to record from
>the inputs *and* playback - the only problem is seperating the two so as
>to only record the inputs through the ac97 codec, and not the playback
>as well)
>  
>

ok - i've figured out what i need to do ... (i use qamix as my mixer ...
least confusing for me ... so i'm using that as my reference here):

1) in the "playback" tab of qamix, there are 3 sections - "master",
"stereo", and "surround". in the "stereo" section, there are volume
sliders for "pcm", "wave", and "music". leave the "pcm" and "music"
sliders at a suitable playback level, and set the "wave" slider to "0".

yep - that's all i needed to do, and i can now record extra tracks into
ardour without the previously recorded tracks being merged in.

as you can probably tell, i don't really have any idea what the
difference between "pcm" and "wave" volume is ... all i know is that if
i use the default device - "hw:0,0" -  then it makes no effect on the
recorded input if the "wave" volume is up or not ... i guess the
difference is the result of your patch :)

anyways, i guess that makes this patch my default alsa driver now, heh,
heh ...

brilliant, brilliant work lee!!

shayne


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