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

From: Lee Revell <rlrevell@email-addr-hidden-job.com>
Date: Mon Jan 16 2006 - 22:46:55 EET

On Mon, 2006-01-16 at 12:24 -0600, Russell Hanaghan wrote:
> 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?

Yes, it works on everything supported by the emu10k1 driver, all the way
back to the SBLive! PCI 512.

Lee
Received on Tue Jan 17 00:15:10 2006

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