Re: [ecasound] triming silence in sound files

On Tue, Jun 14, 2005 at 09:58:53AM +0300, Kai Vehmanen wrote:
> On Fri, 10 Jun 2005, Louis-David Mitterrand wrote:
>
> >I have a bunch of .wav files I have recorded for our (open-source) phone
> >system's voicemail.
> [...]
> >How can I use ecasoud to remove (quasi) silence at the start and end of
> >these files?
>
> ecasound -i foo.wav -o foo-cropped.wav -ge:0.5,0.5,0
>
> See ecasound(1) for more info about the -ge operator. You probably need to
> tune the first two parameters (0.5% example) to get optimal results.

Yes, after looking through the examples I found that operator, and
indeed it does what I am looking for. However if a file has some silence
embedded (a sentence with several words) it will be truncated at the
first silence, which is expected behavior. So I had to use "-ge:1,0" and
forego end trimming.

To effectively trim the end silence, one could maybe process the file in
reverse with that same operator? Or some other trick?

Thanks,

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