[LAU] Silence detection/automation

Vruwink, Timothy Roger vruwink at illinois.edu
Tue Aug 17 14:32:18 UTC 2010

Hi -
I recently found out about JACK through SilentJack no less and realize I may
have found a good tool to do silence detection for my audio streams.

I've got Jack setup and running along with JackMeter and SilentJack. This is
running on an OpenSuse box (11.3) running Gnome and qJackCTL.
I am running VLC to open my audio streams (mix of Real, Windows, MP3,

Does anyone have any tutorials for automating Jack though? It seems
cumbersome to have to recreate the various audio connections (say after
rebooting). I don't see a way to statically assign output ports using VLC.
Ideally, I'd like to automate as much as possible upon logging into the

Last question - Does anyone have any examples of scripts to run after
SilentJack has detected silence? Obviously, I was thinking about an email
alert. I wasn't sure about the syntax needed though.

Thanks for any help or pointers.



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