Share your knowledge at the LQ Wiki.
Go Back > Forums > Linux Forums > Linux - Software
User Name
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.


  Search this Thread
Old 05-30-2011, 10:21 PM   #1
Senior Member
Registered: Apr 2003
Location: Costa Rica
Distribution: Kubuntu, Debian, Knoppix
Posts: 2,064
Blog Entries: 1

Rep: Reputation: 90

Hi! I'd like to make a video of an ogg file going through an oscilloscope as it's playing. audacity (with enough zoom so that the wave can be seen as a wave and not a blur) could make it but it's too heavy and the screen capture software doesn't get the screen refreshes.... so I'd like to know if there's something that could provide more accuracy.

Thanks in advance.

----- post #2 -----
Is there a way to pipe information from applications into xoscope, maybe? That could make it, perhaps.

Mod edit: Posts merged to restore 0-reply status

Last edited by archtoad6; 06-02-2011 at 09:08 AM. Reason: Restore 0-reply status
Old 06-02-2011, 09:28 PM   #2
Senior Member
Registered: Jan 2005
Location: Melbourne, Australia
Distribution: Debian Stretch (Fluxbox WM)
Posts: 1,389
Blog Entries: 52

Rep: Reputation: 355Reputation: 355Reputation: 355Reputation: 355
The jack-tools package has a rudimentary oscilloscope style display.

First the jack daemon has to be running, and then the sound file played using an audio player that can plug into jack. For example, using the alsaplayer-jack plugin:
alsaplayer -o jack soundfile.ogg
Then run the jack scope program:
jack.scope -s line
The output of alsaplayer has to be connected to jack.scope. The connection manager qjackctl can do this, or use The following line is added to the configuration file:
(connect "alsaplayer-[0-9]*:out_1" "jack\.scope-[0-9]*:in_1")
And of course the plumbing daemon has to be started:
Alternatively, some sound cards allow the output pcm mixer to be used as an input instead of the microphone input (have a look at the mixer input controls), which allows a playing sound file to be shown in a package such as xoscope.

Last edited by neonsignal; 06-02-2011 at 09:38 PM.


capture, oscilloscope, sound, wave

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
Bash File Name Matching - Binary file .ogg matches !!! maxvonseibold Linux - General 8 01-30-2007 06:31 PM
Oscilloscope? kalleanka General 1 01-08-2007 07:40 AM
While booting no option is shown for Linux! Only windows xp is shown!! mon avis Linux - General 7 08-06-2006 04:14 PM
To decode an ogg Vorbis audoi file into a .wav file pillu Programming 2 10-11-2004 10:37 AM
File on cd not shown esher2292 Linux - General 3 05-23-2004 02:51 PM > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 04:09 PM.

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