[Audacity-nyquist] [Audacity-users] Re: How to find gaps within an audio clip (fwd)

[David S. <dav...@vc...>]

During the past almost 1 year since I've been using Audacity, there have
been several requests for plug-ins to remove extended periods of silence
in such things as lectures. I haven't read anything  (so far) in the
Nyquist manual
how to accomplish such a thing. I _suspect_ such a thing could be
accomplished by first applying something like a noise gate... but then,
how do I use nyquist to find an extended (pre-defined) period of zero
amplitude signal and then delete it?

Thanks

David

---------- Forwarded message ----------
Date: Sun, 6 Mar 2005 15:25:30 +1300
From: Rob Wilkinson <rob...@or...>
Reply-To: aud...@li...
To: aud...@li...
Subject: [Audacity-users] Re: How to find gaps within an audio clip


There is a very useful note about Tracksplit2 associated with the pages
describing GramoFile v 1.4.
It may be what you are looking for.
Go to:	http://panic.et.tudelft.nl/%7Ecostar/gramofile/

NB there is a Debian package of Gramofile v6 at:
http://packages.debian.org/stable/sound/gramofile
Gramofile also has some neat filters for dealing with impulse noise.

regards
Rob Wilkinson


> Re: How to find gaps within an audio clip
> 2005-03-02 10:48
>
>  This has been a fairly frequent question on the Audacity-users list,
> I"ve
>  had no idea how to do such a thing either. David
>
>  On Wed, 2 Mar 2005, Mad Robot wrote:
>
>  > Hello,
>  >
>  > Can anyone direct me to some code / psuedo-code that would allow me
> mark the
>  > spaces (or gaps) within an audio clip.
>  > I tried manipulating the "beat finder" code to no avail.
>  >
>  > My intended purpose is to compress audio by removing long gaps of
> silence.
>  >
>  > Thanks,
>  > md.