Re: multichannel woes

From	ebenZEROONE@verizon.net (Hactar)
Newsgroups	comp.os.linux.hardware
Subject	Re: multichannel woes
Date	2014-03-26 15:46 -0400
Organization	A noiseless patient Spider
Message-ID	<pdnb0b-20q.ln1@pc.home> (permalink)
References	<5o640b-jeh.ln1@pc.home> <d6976f25-b0a3-4558-b132-43af37598676@googlegroups.com>

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In article <d6976f25-b0a3-4558-b132-43af37598676@googlegroups.com>,
JTF  <jflaker@gmail.com> wrote:

> On Sunday, March 23, 2014 7:19:01 PM UTC-4, Hactar wrote:
> > I have a 5.1 setup in Ubuntu 10.04 LTS (I think), powered by ALSA
> > 1.0.25 and pulseaudio 1:1.1-0.

[ rear right > rear left, LFE and rear left don't work ]

> I remember trouble with ALSA a few years ago.  Most, if not ALL of
> those problems are gone with the latest Long Term Support (LTS) version
> and more so in 13.10.

Well now for some reason, LFE (sub) works.  The rear right still comes
out the rear left, and the rear left is absent.  The current .asoundrc is:

pcm.ch51dup {
 slave.pcm surround51
 slave.channels 6
 type route
 ttable.0.0 1
 ttable.1.1 1
 ttable.0.2 1
 ttable.1.3 1
 ttable.0.4 0.5
 ttable.1.4 0.5
 ttable.0.5 0.5
 ttable.1.5 0.5
}

(plus some commented-out stuff)

Can you explain what the ttable columns mean?  The last number looks like
a level, and the second looks like an output channel.

> The latest LTS is 12.10.  Have you considered upgrading and seeing if
> your issues go away?

Upgrading the distro is a last resort.  Many things break, including my
workflow.  IIRC ALSA is as modern as my distro allows.  Lemme check...
yup, 1.025+dfsg-0ubuntu1.1 .

-- 
-eben    QebWenE01R@vTerYizUonI.nOetP    ebmanda.redirectme.net:81
LIBRA:  A big promotion is just around the corner for someone
much more talented than you.  Laughter is the very best medicine,
remember that when your appendix bursts next week.  -- Weird Al

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Thread

multichannel woes ebenZEROONE@verizon.net (Hactar) - 2014-03-23 19:19 -0400
  Re: multichannel woes JTF <jflaker@gmail.com> - 2014-03-25 20:31 -0700
    Re: multichannel woes ebenZEROONE@verizon.net (Hactar) - 2014-03-26 15:46 -0400

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