[linux-dvb] hvr-1300 analog audio question

marcin kowalski yoshi314 at gmail.com
Sat Jul 5 13:03:22 CEST 2008


On 11:18 Sat 05 Jul     , yoshi watanabe wrote:
> one small update. when i run the arecord | aplay combo with these parameters :
> 
> arecord -D hw:1,0 -c 2 -f S16 --period-size=8192 --buffer-size=524288 | aplay -
> 
> or with omitting the --period-size=8192 --buffer-size=524288
> 
> i hear noise. but when i start tvtime, right after video appears on
> screen i usually get 1-2 seconds of clear audio, and then noise comes
> in. i might be on to something. when i discard the buffering
> parameters sometimes arecord or aplay complain about buffer underrun.
> tvtime does not use cx88 mixes by default, by if i specify /
> 
> also this command
>  arecord -D hw:1,0 -c 2 -f S16_LE --period-size=65536
> --buffer-size=524288 -r 48000| aplay -r 48000 -
> 
> gives me very few errors now. noise pick ups when the sounds get
> louder though, but feel i'm really close now.
> 
> this is on a freshly installed system with mpeg encoder module
> disabled. i'll do some more testing.
> 
> 
this mail got strangely garbled when i sent it. it certainly didn't look like this when i sent it.

the thing is - i'm pretty close to success. i'll try building cx88 modules from ~rmcc branch to see whether they make a 
difference.




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