Subject: Re: [ecasound] [RME Hammerfall] Using multiple channels
From: Kai Vehmanen (kai.vehmanen_AT_wakkanet.fi)
Date: Fri Jul 19 2002 - 13:37:13 EEST
On Fri, 19 Jul 2002, Jesper - Servicez.org Hosting wrote:
> (I sent one of you an email on an private email, excuse me for that one..)
No problemo! ;)
> I still try to use my channels on a RME hammerfall.
> ecasound -i feest.mp3 -o /dev/dsp -f:s32_le,10,44100,n
> That's what i'm playing now, and it sounds okay.. although i think that this
> is not alsa where i am talking with.
Yup, here the soundcard access goes through ALSA's OSS-emulation layer.
The routing commands I mentioned in the previous post (-erc and -eac)
should work fine with both OSS-emulation and native access. But
I recommend using the native ALSA mode, especially with the RME.
Non-interleaved access to OSS devices is quite ineffiecient (unlike
ALSA, OSS only supports interleaved multichannel operation).
> When i try to use -o alsa, it says:
> [root_AT_jep root]# ecasound -i feest.mp3 -o alsa -f:s32_le,10,44100,n
> ERROR: [ECA-CHAINSETUP] : "Format of output alsa not recognized."
This means that ecasound was not compiled with ALSA-support. To enable it,
you have to recompile ecasound after installing the alsa-lib package.
You can get a list of support audio input/output types with the command
"echo aio-register |ecasound -c". You should see 'alsa' list as one of the
-- http://www.eca.cx Audio software for Linux!
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