Re: Sox recording to null of an audio loopback?

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JamesH <hauge.james@xxxxxxxxx> writes:

> Aloha from Hawaii!
>
> I'm using a Raspberry Pi and am trying to make an alarm kinda thing...
>
> What I need to figure out how to do, and what I'm looking for help with is
> to figure out how to make sox (using the rec command I believe) record into
> a null file (meaning it doesn't really record, just goes through the
> motions) until there's 5 seconds of silence...
>
> Being that the Raspberry Pi doesn't have any kind of audio capture setup, I
> was able to run a command that brought up a loopback audio device (that
> command is "sudo modprobe snd-aloop") 
>
> Now, how can I give sox a command to record from the loopback until there's
> 5 seconds of audio, or should I be looking at a different way of checking if
> the audio output of the raspberry pi has no sound?

Could you explain in a bit more detail what it is you are trying to
achieve?

-- 
Måns Rullgård

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