Re: help on small program

[Lee Revell <rlrevell@joe-job.com>]

On Sun, 2005-12-11 at 11:27 -0500, bill wrote:
> hello,
> i am trying to make a small program...
> 
> basically i want to measure the ambient noise level with a microphone  
> and then
> set the level of the music playing accordingly
> a basic "IF ... THEN"  scenario
> 
> IF the microphone level is reading 15 over this 3 second sample  
> period, THEN set the music level output  to 44
> IF the microphone level is reading 20 over this 3 second sample  
> period, THEN set the music level output to 50
> etc
> 
> and want to take the output from my sound program, process it with  
> this small program,  and then feed it into the USB sound output device
> 
> bascially i'm not good enough at programming to do this
> 
> can anybody out there help me out??  i will pay CASH, beer, food ,  
> anything .... if you can save me!

Just take a look at the "aplay" and "arecord" sources, all you need is
in there.  Hint - when you run "aplay" or "arecord" with -vvv, it
displays a real time VU meter of the audio.  You just need to combine
the two into a single program, where the output level is set based on
the input level.

It seems like you could do it with 95% copy and paste.  Unfortunately I
don't have time to help you in more detail but this should get you
started.

Lee 



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