LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices

Reply
 
Search this Thread
Old 06-19-2010, 07:22 PM   #1
Jeff91
Bodhi Developer
 
Registered: Jan 2009
Location: Alsip, IL
Distribution: Bodhi and Maemo
Posts: 297

Rep: Reputation: 33
Real time management of audio inputs/outputs?


Howdy There,

I was wondering if there is an application for Ubuntu (FOSS or otherwise) that would allow me real time management of all of my audio inputs and outputs.

Essentially I have multiple microphones attached to my computer and multiple audio outputs. What I am looking to do is to be able to assign each different input to it's own audio output. A touch screen interface is a plus for the program but not necessary.

Anyone know of software that does what I am describing?

Regards,
~Jeff
 
Old 06-20-2010, 03:18 AM   #2
smoker
Senior Member
 
Registered: Oct 2004
Distribution: Fedora Core 4, 12, 13, 14, 15, 17
Posts: 2,279

Rep: Reputation: 248Reputation: 248Reputation: 248
Jack ?
 
Old 06-21-2010, 05:30 PM   #3
Jeff91
Bodhi Developer
 
Registered: Jan 2009
Location: Alsip, IL
Distribution: Bodhi and Maemo
Posts: 297

Original Poster
Rep: Reputation: 33
Maybe I am just not understanding the GUI/documentation (only glazed over it, going to read more of it later). But is Jackd for managing application's sound output only or is there a way I can capture audio input and control where/how it pipes back out of my system?

~Jeff
 
Old 06-21-2010, 06:18 PM   #4
sycamorex
LQ Veteran
 
Registered: Nov 2005
Location: London
Distribution: Slackware64-current
Posts: 5,564
Blog Entries: 1

Rep: Reputation: 1024Reputation: 1024Reputation: 1024Reputation: 1024Reputation: 1024Reputation: 1024Reputation: 1024Reputation: 1024
Quote:
Originally Posted by Jeff91 View Post
Maybe I am just not understanding the GUI/documentation (only glazed over it, going to read more of it later). But is Jackd for managing application's sound output only or is there a way I can capture audio input and control where/how it pipes back out of my system?

~Jeff
If you scroll down to the jack entry:
http://www.tuxradar.com/content/how-...udio-explained

Is that what you mean?
 
Old 06-21-2010, 08:39 PM   #5
jefro
Guru
 
Registered: Mar 2008
Posts: 11,552

Rep: Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406
You'd also need a real time OS.
 
Old 06-22-2010, 05:15 AM   #6
H_TeXMeX_H
Guru
 
Registered: Oct 2005
Location: $RANDOM
Distribution: slackware64
Posts: 12,928
Blog Entries: 2

Rep: Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269
Yes, you need both jack and real-time kernel (which you will probably have to compile).
 
Old 06-22-2010, 11:16 AM   #7
PeterWurmsdobler
LQ Newbie
 
Registered: May 2010
Location: Cambridge, UK
Distribution: Ubuntu 9.04
Posts: 17

Rep: Reputation: 1
what part has to be real-time

Hello, perhaps it may sound pedantic, but what aspect in your application has to be real-time?

Is it that you want to define the routes of audio inputs to outputs using some form of GUI, and then the actual audio signals have to be routed or mixed and filtered by some audio processing software in real-time, i.e. in a deterministic fashion and within a given time delay? In this case there was several years ago a project call RAT - http://www.linuxfordevices.com/c/a/L...e-Audio-Tools/

Or is the emphasis on "real time management", i.e. you want to manage the input/output routing in "real-time", meaning whenever you change something like the routing in a GUI, you want it to take effect in "real-time", possibly meaning within a humanly not perceptible time delay, but the signals are actually routed in hardware. In this case you do not require any real-time kernel.

Cheers,
peter
 
Old 06-22-2010, 04:26 PM   #8
jefro
Guru
 
Registered: Mar 2008
Posts: 11,552

Rep: Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406
Real time audio has great advantages to users that require music to be presented while at the same time being recorded. Many people can hear that the recordings are off and it is difficult to correct in post processing.
 
Old 06-23-2010, 12:35 AM   #9
konsolebox
Senior Member
 
Registered: Oct 2005
Distribution: Gentoo, Slackware, LFS
Posts: 2,245
Blog Entries: 15

Rep: Reputation: 233Reputation: 233Reputation: 233
Perhaps you can start with building (configure and recompile) a less preemptive kernel?
 
Old 06-23-2010, 03:05 PM   #10
jefro
Guru
 
Registered: Mar 2008
Posts: 11,552

Rep: Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406Reputation: 1406
I think ubuntu studio will install the RTOS kernel if you select the audio packages. It really may be the best starting point unless you really know a lot about QNX.
 
  


Reply

Tags
audio


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 Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
real time kernel not real time, still xruns in Jackd browny_amiga Linux - General 0 09-20-2009 02:47 PM
latency and audio programming in real-time tanoatlq Programming 2 08-12-2008 05:01 PM
Real Time Clock & Real Time Timer jiramak Linux - Newbie 1 09-05-2007 06:43 PM
LXer: Real-time garbage collection with Real-time Java LXer Syndicated Linux News 0 05-05-2007 12:16 PM
LXer: Real-time Linux gains real-time JVM LXer Syndicated Linux News 0 10-12-2006 10:54 AM


All times are GMT -5. The time now is 05:55 AM.

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