Subject: Re: [ecasound] Q: Removing silence from beginning and end of a file?
From: janne halttunen (jhalttun_AT_pp.htv.fi)
Date: Fri Sep 13 2002 - 11:27:47 EEST
On Fri, 13 Sep 2002 10:21:49 +0300 (EEST)
Tapio Kelloniemi <spam_AT_thack.org> wrote:
> I'd have two questions about using Ecasound:
> First I want to remove silence from beginning and end of a file. I
> can't use thresold gate, because if volume decreases too much in the
> middle of the file it is truncated too early.
This operator seems to be the way to go:
Threshold gate. Initially gate is closed. It is opened when vol
ume goes over 'othreshold' percent. After this, if volume drops
below 'cthold' percent, gate is closed and won't be opened
again. If 'value_mode' is 'rms', average RMS volume is used.
Otherwise peak average is used. When closed, passing audio
buffers are trucated to zero length.
Maybe with RMS value-mode enabled. (should be less sensitive to sudden volume drops)
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