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Re: large audio files

From: Andy Peters <devel_at_latke.net>
Date: 2005-04-02 19:16:17 CEST

Chris Jensen wrote:

> Rather than storing the file itself in subversion could you store some
> kind "undo log" plus the original file?
> ie As you're editing, could you get your audio editor application to
> create some kind of small file that says "Cut the audio between X and Y,
> Rescale volume by Z%, etc" and store that file plus the original WAV in
> subversion (and maybe some intermediate versions if you wanted to save
> time on reconstructing files with a lot of changes.
> (I don't know of any audio software that does this, I'm just throwing
> this out for thought)

Completely off-topic here, but anyways: Actually, a lot of audio and
video editing software work in this way. Rather than destructively
editing an audio file, you create "edit lists" that contain editing
instructions, like "Fade here," "pan here," "change EQ there" and so
forth. Edit lists are used so you don't destroy the original file.
These programs also have the option to render mixes to a new file, so if
you're mixing a lot of tracks, you don't use up all of your DSP
resources. You just render the mix in parts, and build a new mix out of
the pre-rendered bits.

An edit list, if a text file, would be ideal for putting into a
revision-control system.

--a

----------------------
Andy Peters
Tucson, AZ
devel@latke.net

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Received on Sat Apr 2 19:18:50 2005

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