Re: [SoX-users] How to apply effects to a subsection of the input file?

[Erich E. <er...@ec...>]

Hi,

you can use ":" to separate effect chaines - as stated in the manual:

<cite>
An effects chain is terminated by placing a : (colon) after an effect.
Any following effects are a part of a new effects chain.
</cite>

So in your example use:
trim 0 10 speed 0.9 : trim 0 10 speed 1.1 : speed 0.99

greetings,
Erich

Am 25.06.2015 um 05:33 schrieb forget color:
> I'm looking for a way to programmatically apply effects to subsections
> of an input file. For example, given a 10 second input file, I might
> like to adjust the speed of the first second slower by 10%, then the
> next second faster by 10%, then the next one slower, etc.
> 
> Is there any way to do this using the sox command line?
> 
> I can certainly do it more brute force, trimming an input file into many
> files, applying the effects to those files, then splicing the results
> back together. But I wondered if there's any way to do this in one go?
> 
> thanks
> 
> 
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