Re: help for a levelmeter

[Abramo Bagnara <abramo.bagnara@libero.it>]

Laurent Georget wrote:
> 
> 
> Excellent!
> 
> Well, you wrote  that there is a sample implementation of this pcm_meter ,
> but I can't find it (searched in alsa tools / utils , and searched  with
> google with no good result)
> 
> Anyway, i'm going on trying to use it


Install alsa-driver, alsa-lib, alsa-oss.
Insert (adapting it) this in your .asoundrc

pcm_scope.level {
	type level
}

pcm_scope_type.level {
	lib /u/cvs/alsa/alsa-lib/src/pcm/scopes/.libs/liblevel.so
}

pcm.dsp0 {
	type meter
	slave.pcm 'hw:0,0'
	scopes.0 level
}

Then try:

aplay -D dsp0 file.wav

or the more complex

aoss realplay /u/music/real/music.rm

and you'll see amazing things ;-)


-- 
Abramo Bagnara                       mailto:abramo.bagnara@libero.it

Opera Unica                          Phone: +39.546.656023
Via Emilia Interna, 140
48014 Castel Bolognese (RA) - Italy


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf