[E3-hacking] [PATCH] sound support

[Mark Underwood]

--- Matt Callow <mc-lists at tesco.net> wrote:

> Mark Underwood wrote:
> 
> >Here (at last!) the Voice Modem sound patch. The driver is an ALSA driver and it along with OSS
> >emulation and a few other things will need to be enable if you want any sound. I have tested it
> >with rawrec/rawplay and mpg321 which can't seem to decode the MP3 quick enough (tested with a
> >192KB MP3).
> >
> >Mark
> >
> >  
> >
> Nice work Mark. Patch applied without problems. I tested playback using
> mpd and madplayer (both use libmad) and it seems to decode mp3s without
> problems (as reported by others). I've not tested capture yet.
> 
> A few questions/observations:
> 
> 1. The sound comes out of the handset. Is that expected?
Yes, I'm not sure to change it to come out the speaker on the unit. I think someone has an AT
command which worked, but I'm not sure what it was.
> 2. The sound is very distorted - are other people experiencing this?
With madplayer yes. With the default settings the amp is being driven too hard, you need to turn
down the volume :-).

Mark
> 
> 
> Matt
> 
> (P.S. it seems to mess up my camera driver once I've installed the sound
> modules, but that could well be a problem with the camera driver)
Hmm, not sure what would cause that, unless your using the same clock the as sound driver.
> 
> 
> 
> 
> 
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