Re: My generated file that should be silent instead has tone

On 2017-10-24 18:41, David P wrote:
> I would like to generate files of silence of specific durations, all at
> 16+kHz, 16bit wide, and single channel. After reading http://sox.
> sourceforge.net/sox.html I believe the following command should do 
> that,
> but instead it produces a tone:
> 
> sox --null --rate 16k --bits 16 --channels 1
> "C:/Users/me/Desktop/silent19secs.wav"
> synth trim 0.0 19.907625
> 
> Please tell me how to adjust this command.

The whole purpose of the 'synth' effect is to generate tones.  Although
you didn't specify any parameters for that effect, it has defaults, so
will have done something.

I don't know why you put 'synth' there.  The --null    (sort of dummy
input file) is described as infinite silence, so I would have thought
that

sox --null --rate 16k --bits 16 --channels 1
   "C:/Users/me/Desktop/silent19secs.wav" trim 0 19

might work.


-- 
Jeremy Nicoll - my opinions are my own

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