On Fri, 30 Dec 2005, Adam Nielsen wrote:
What are you trying to do?
I'm still trying to get stereo output when passing the sound through a
LADSPA plugin (which in the latest version of ALSA converts any incoming
stereo source into mono.)
Could you enter a bug report if the current LADSPA
I'll try to deliver it on Sunday evening in terms of GMT+2 timezone.
Excellent!
First a childish question: are you sure the speakers are in phase ?
Yes, I can't stand out of phase speakers (at least by 180 degrees) so
I'm sure that's not the problem. Given that the speakers aren't
The plugin compiles again - I removed a number of unnecessary
things from it.
After having some sleep I'll try to launch it.
What center frequencies would you like to have ?
It's configurable through the plugin's Perl part, I'd like to enter them
the way you like the because you'll have other
Adam,
incidentally, I used to work with LADSPA equalizer plugin, and I have
a natively stereo version.
Furthermore, my code is written as Perl/C combination, so with a flip
of your fingers you can actually get whatever number of channels.
The plugin is optimized in a sense that mutual for all
incidentally, I used to work with LADSPA equalizer plugin, and I have
a natively stereo version. Furthermore, my code is written as Perl/C
combination, so with a flip of your fingers you can actually get
whatever number of channels.
That sounds interesting... I think the problem is that the
Hi all,
What does this error mean?
aplay: pcm_plug.c:384: snd_pcm_plug_change_channels: Assertion
`snd_pcm_format_linear(slv-format)' failed.
Aborted by signal Aborted...
ALSA lib pcm_plug.c:68:(snd_pcm_plug_close) plug slaves mismatch
Just when I think I'm about to solve my problem, I always
On Fri, 2005-12-30 at 11:36 +1000, Adam Nielsen wrote:
Hi all,
What does this error mean?
aplay: pcm_plug.c:384: snd_pcm_plug_change_channels: Assertion
`snd_pcm_format_linear(slv-format)' failed.
Aborted by signal Aborted...
ALSA lib pcm_plug.c:68:(snd_pcm_plug_close) plug slaves
What are you trying to do?
I'm still trying to get stereo output when passing the sound through a
LADSPA plugin (which in the latest version of ALSA converts any incoming
stereo source into mono.) My current idea is to create a multi-card
device, with the two combined sound cards being both on
On Fri, 2005-12-30 at 12:04 +1000, Adam Nielsen wrote:
What are you trying to do?
I'm still trying to get stereo output when passing the sound through a
LADSPA plugin (which in the latest version of ALSA converts any incoming
stereo source into mono.) My current idea is to create a
Well AFAICT that assert is saying that the slave of a route plugin
can't have a non-linear format.
That's what I thought - given that the slave is the LADSPA plugin, I
assumed I'd somehow have to convert it to linear format before passing
it to LADSPA - but I can't find any docs about how to do
Then I can feed one card through LADSPA giving one
mono signal, and the other card though LADSPA giving a second mono
signal, and then I can hopefully route the two mono signals out the left
and right speakers giving me a stereo signal that has passed through
LADSPA.
- well, it might be not a
It might be even worse.
The cards most likely have independent clock generators.
In such a case, there will be (slightly) different playback
speed of left and right channels.
On Fri, 30 Dec 2005 04:33:13 +0200
Sergei Steshenko [EMAIL PROTECTED] wrote:
Then I can feed one card through
For stereo sound reproduction through speakers it is absolutely
crucial to have consistent and STABLE phase relationship between the
channels.
Good point, but to be honest I'd rather have out of phase stereo
compared to the mono sound I have at the moment ;-)
Data is written to the two cards
On Fri, 2005-12-30 at 12:04 +1000, Adam Nielsen wrote:
What are you trying to do?
I'm still trying to get stereo output when passing the sound through a
LADSPA plugin (which in the latest version of ALSA converts any incoming
stereo source into mono.) My current idea is to create a
Wait, so you're just trying to work around a bug in the LADSPA plugin?
Well, yes. *blushes*
Why not just try to get that fixed?
Primarily because I've got absolutely no idea where to start looking,
and I was hoping that this would be a quicker solution. Looks like
perhaps it wasn't ;-)
On Fri, 2005-12-30 at 12:51 +1000, Adam Nielsen wrote:
Wait, so you're just trying to work around a bug in the LADSPA plugin?
Well, yes. *blushes*
Why not just try to get that fixed?
Primarily because I've got absolutely no idea where to start looking,
and I was hoping that this would
Can you explain what you are trying to accomplish starting from the
beginning?
Okay, well starting from the very beginning...
- I want 5.1 channel output from my sound card. All the time.
- This means that when I play stereo sound I want it routed to the
front two speakers as well as
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