LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   Linux - Software (http://www.linuxquestions.org/questions/linux-software-2/)
-   -   need program to process audio in ogg theora videos (http://www.linuxquestions.org/questions/linux-software-2/need-program-to-process-audio-in-ogg-theora-videos-672114/)

oskar 09-24-2008 02:25 PM

need program to process audio in ogg theora videos
 
I'm recording another screencast today. Last time I had a hard time editing the audio. Last time I did that I had to split audio and video, edit the audio separately and then merge them again, which is pretty inconvenient.
What I want to do is to either simply normalize the audio (increase gain to push the highest peak up to 0dbv) or preferably add a compressor/limiter and eq.
Either a video editor that can do that or one that can handle dssi plugins would be great... alternatively an easy script - I think mencoder and ecasound should be able to do the trick, but that's already a little more fuss than I care about.
Maybe even mencoder alone... but before I spend my whole evening trying to figure this out, I was hoping somebody has already done something like that and can point me in the right direction. Simple is the key. I know plenty of complicated ways to do that.

TwinReverb 09-25-2008 03:51 PM

Quote:

Originally Posted by oskar (Post 3290614)
I'm recording another screencast today. Last time I had a hard time editing the audio. Last time I did that I had to split audio and video, edit the audio separately and then merge them again, which is pretty inconvenient.
What I want to do is to either simply normalize the audio (increase gain to push the highest peak up to 0dbv) or preferably add a compressor/limiter and eq.
Either a video editor that can do that or one that can handle dssi plugins would be great... alternatively an easy script - I think mencoder and ecasound should be able to do the trick, but that's already a little more fuss than I care about.
Maybe even mencoder alone... but before I spend my whole evening trying to figure this out, I was hoping somebody has already done something like that and can point me in the right direction. Simple is the key. I know plenty of complicated ways to do that.

If you can use Audacity to do it, I would use that to do it. You can tell Audacity to amplify the audio, and it has an option to prevent clipping (i.e. distortion because it's over-amplified). You can also use that program to listen to the audio and review it before you save it. If I were you, I'd use Audacity.

However, you can also fool around with the normalize program and/or with sox to do the same thing. Check out their manual pages on how to use them.

oskar 09-26-2008 06:14 PM

Yes, but that requires too many extra steps to make it worthwhile. I would have to split the audio from the video then import it in audacity, and then merge it again. I'd rather just leave it... that's not worth the effort for what I'm doing.
I guess the best options really is a script that automates the process and uses ffmpeg or mencoder + ecasound.


All times are GMT -5. The time now is 04:42 AM.