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Old 07-14-2004, 03:22 PM   #1
Registered: Apr 2004
Distribution: Fedora Core 3
Posts: 73

Rep: Reputation: 15
Audio: Using two dsp devices for full duplex?

I'm a newbie... 8^)

I'm trying to do full duplex audio recording using Audacity. This involves listening to a previously recorded audio track while recording a new one. The program is configured to use /dev/dsp for both record and playback but I've gotten the impression from googleing that I need to use /dev/dsp for recording and /dev/dsp1 for playback. (Seems to make sense...)

I see both dsp and dsp1 device files in /dev but Audacity only lists /dev/dsp in it's dropdown menu of which device to use.

My sound hardware is built-in: Intel 82801DB-ICH4 which I'm pretty sure is capable of full duplex operation.

How do I make use of both dsp and dsp1 devices?

BTW, I'm using the ALSA drivers, etc from "Planet CCRMA".

Thanks in advance,

Last edited by Utah; 07-14-2004 at 03:26 PM.


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