Re: [linux-audio-dev] introB

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Subject: Re: [linux-audio-dev] introB
From: Richard A. Smith (rsmith_AT_bitworks.com)
Date: Tue Jan 02 2001 - 18:48:06 EET

On Sun, 31 Dec 2000 12:27:48 -0500, Paul Barton-Davis wrote:

>>> copies of the same application to access the sound device and have thier
>>> output one of the 2 channels of stereo output.
>>> ex Copy A -> L channel
>>> Copy B -> R channel
>>
>>That can be done at least with commercial OSS. It now has input multiplexer.
>
>it can be done with the kernel drivers/free OSS/ALSA for any card
>supporting h/w mixing (which is most modern/new cards). for example,
>32 applications can open (/dev/dsp|/dev/snd/pcmN0Dn) if that device
>file refers to a trident-based sound card. most of the ESS cards and
>the SB series can do this as well.

Excellent... I love it when Linux already has my problems solved..

Do AC97 codecs require hardware mixers? 

--
Richard A. Smith                         Bitworks, Inc.               
rsmith_AT_bitworks.com               501.846.5777                        
Sr. Design Engineer        http://www.bitworks.com

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