[plug] Audio processing

[Nick Bannon]

On Sat, Jan 27, 2001 at 11:07:15AM +0800, Bill Kenworthy wrote:
> Hi,
> 	I occasionally do a bit of audio processing and am looking for a tool
> that could make things a bit less "manual".  In this case I am looking

This isn't exactly what you asked for, but it's down the right track ;
http://www.cmis.csiro.au/dmis/Maaate/

It's for analysing MPEG audio, which can be embedded in an audio/video
stream. The conversion to MPEG audio means that the program has
implicit access to a frequency breakdown, and it means that the data is
probably a bit easier to handle than 2GB WAV files, size-wise.

> for something that can find "noise" (the tv card I was recording from
> lost sync - a frequent occurrence with this cheap card!) and give an
> approximate location within an up to to 2g wav file.  Bonus would be
> silence detection and some kind of boundary (glitch?) detection for when
> the video camera stops/starts recording.  I doubt these functions could
> be reliably programmed, but you never know if you don't ask.

Oh, they certainly can be programmed - and they don't have to be 100%
reliable to be useful to you, when doing editing. Maaate certainly does
silence detection, and I think noise as well - and there's a module API
to add similar filters relatively easily.

Nick.

-- 
  Nick Bannon  | "I made this letter longer than usual because
nick at it.net.au | I lack the time to make it shorter." - Pascal