text console tools for audio processing

Chuck Hallenbeck chuckh at ftml.net
Mon Jun 16 15:44:40 EDT 2008


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Hi Luke,

On Mon, Jun 16, 2008 at 03:32:16PM -0400, luke wrote:
> On Tue, 17 Jun 2008, Janina Sajka wrote:
> 
> That will be a very interesting feature for me in particular, although 
> doing it by percentage instead of by seconds and divisions of seconds, 
> such as "sox file1.wav file2.wav trim 17:05.5218 2.1143" would be a bit 
> strange, although I suspect it can work in that mode as well, as he's 
> probably just invoking sox to do the actual editing.
> 
> Luke

You can identify a point in a file either by percentages, or by
minutes:seconds. A number without a colon is interpreted as a percent
of the total length, a number with a colon is taken as minutes colon
seconds, with the seconds part permitting a decimal point.

Copy, snipp8ing, killing, and zapping a region of a track is done
natively by wedit rather than relying on soc, since it is perfomred on
the memory image of the file, not the file itself. Edges produced by
those operations are faded sinusoidally over a 100 ms interval. The
analogy is a diagonal splice of audio tape, except the slope of the
splice is a half cycle of a sine wave instead of linear.

HTH

Chuck





- -- 
The Moon is Waxing Gibbous (97% of Full)

My web site: http://hallenbeck.ftml.net and my cell phone: 1-518-334-9022.
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