Recording Audio with Silence Detection?

devmoc · 09-10-2008, 01:38 PM

Is there anyway in Linux to record audio coming from the Line-In but only trigger the recording when the amplitude exceeds a certain threshold? I want to be able to record audio coming from a radio scanner, but I only want the recording to occur happen when there is audio coming in. I'd also like the recording to continuously append to a single file if possible. Thanks.

matthewg42 · 09-10-2008, 02:38 PM

I think sox has silence detection, but I'm not quite sure how to use it for that.

devmoc · 09-11-2008, 11:54 PM

I ended up figuring out a way. Check this out if you are having the same need.

http://www.linuxquestions.org/questi...9/#post3277955

kdobrev · 11-30-2008, 05:45 AM

Can you guys post the command to record sound with silence detection. I was not able to do it.

navaburo · 09-25-2009, 11:41 AM

Take a look at my post here:
http://www.linuxquestions.org/questi...=1#post3696924

Perhaps that program would help.