Re: [ecasound] trimming silce from within an audio stream

From: Kai Vehmanen <kvehmanen@email-addr-hidden>
Date: Wed Oct 22 2008 - 23:30:11 EEST


On Tue, 21 Oct 2008, jhall@email-addr-hidden wrote:

> I think the answer to this is no, but I'll ask it anyway.
> I have an audio stream which contains mostly silence, but from
> time-to-time some activity may occur. I want something similar to the
> -enm noise gate where I can set the threshold for when the gate opens
> and when it closes, and then when the gate is closed, instead of
> outputting silence, I want it to output nothing at all, so that if one
> were to listen to the audio again, he would not need to wait during
> the silence for the next discussion, for example:

actually Andrew Lees contribute a patch for this to 2.5.0 release:

         - added: 'reopen-count' parameter to threshold gate (-ge);
                  for instance when recording vinyl/tapes, this allows
                  to automatically restart recording when a new track
                  is started [andrewl]

... this should do what you need.

> I suppose it would really be cool if it could announce in the output
> the time the next block of "interesting" traffic occurs. Then I know
> what happened as well as when it happened.

Now that is unfortunately not possible with current versions. One would
need to implement a new gate variant for this...

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Received on Thu Oct 23 00:15:02 2008

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