editing & combining sound files?

[Tom Glod]

sox is good for this kind of stuff, you can automate the command-lines
using livecode....but you can skip some of the bs you would probably
encounter with LC and audio "processing".

http://sox.sourceforge.net/

On Wed, Aug 22, 2018 at 10:30 PM Geoff Canyon via use-livecode <
use-livecode at lists.runrev.com> wrote:

> I did something very much like this way, way, way long ago (in the MetaCard
> days...). I don't remember the sound format, and it was mono, not stereo,
> but it turned out that the format for the sound file was *really* simple: a
> few bytes of easily-managed header, a bunch of binary data that represented
> the sound file data, and a few bytes of footer.
>
> So the steps above would be roughly:
>
> 1. Read in the binary data from the sound file, strip the header/footer.
> 2. Figure out what the "silence" value is for that sound format, append a
> certain number of that value to the data.
> 3,4. Read in the binary data from the second file, strip the header/footer
> and append to the data.
> 5. ??? Not sure how to do this. Instead, might add the appropriate
> header/footer and write out the data in the same format as the input files.
> 6. Close the access to the original files.
>
> If MP3 isn't comprehensible, then you could bulk convert the resulting
> files from AU to MP3 using any number of tools.
>
> gc
>
>
> On Wed, Aug 22, 2018 at 5:14 PM Nicolas Cueto via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>
> > Hello List,
> >
> > I wish to automate a repetitive (and tedious!) process that's now being
> > done manually using a sound-file editor (Goldwave).
> >
> > The process is:
> >
> > 1. Open an AU sound file.
> > 2. Append 1 second of silence to that file.
> > 3. Open a 2nd AU sound file.
> > 4. Copy and append that 2nd file to the 1st file.
> > 5. Save as MP3 with a new title that now-modified 1st file.
> > 6. Close that 1st file unmodified.
> > 7. [Repeat 1-6.]
> >
> > If this is possible (easily possible!) with LC, what LC commands ought I
> be
> > studying/using?
> >
> > Many thanks.
> >
> > --
> > Nicolas Cueto
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