Help answer threads with 0 replies.
Go Back > Forums > Linux Forums > Linux - General
User Name
Linux - General This Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.


  Search this Thread
Old 07-16-2004, 05:53 PM   #1
Registered: Apr 2004
Distribution: Fedora Core 3
Posts: 73

Rep: Reputation: 15
Audio: Full Duplex Playback/Record

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...)

When I try to do this in Audacity using the stock setup, it does indeed record a new track but the new audio track is very distorted (garbled) sounding.

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. Does anyone know if this is true and, if so, then what is missing on the software/os side?

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,


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
full duplex chazzwozzer Linux - Networking 1 02-07-2005 03:11 PM
Audio: Full duplex (playback/record) Utah Linux - Hardware 2 07-17-2004 12:29 PM
Audio: Using two dsp devices for full duplex? Utah Linux - Software 0 07-14-2004 03:22 PM
Full duplex sound InSane103 Linux - Hardware 15 05-13-2004 12:58 AM
Audigy2 and Full Duplex ViN86 Linux - Hardware 0 04-19-2004 07:21 PM

All times are GMT -5. The time now is 05:57 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration