Re: optical SPDIF output on Abit NF7 nforce2 main board.

[Takashi Iwai <tiwai@suse.de>]

At Tue, 02 Sep 2003 22:31:40 +0200,
Carsten Koch wrote:
> 
> Takashi Iwai wrote:
> ...
> > looking at the nvidia's driver code, it seems that spdif on nforce
> > supports only 48k in fact.
> > i'll add the restriction on the driver side, then.
> > could you try the attached patch?
> 
> Sorry for the delay, I was travelling all day.
> 
> I did apply your patch (to my old cvs version, still having
> problems accessing sourceforge).
> 
> It made matters better for mpg321 and worse for alsaplayer.
> 
> "mpg321 -o alsa09 --audiodevice hw:0,1" still plays 44Khz sounds
> too fast, as expected.

note that it's correct behavior.
hw layer doesn't do sample rate conversion.

> 
> "mpg321 -o alsa09 --audiodevice plughw:0,1" now plays 44Khz sounds
> correctly. Excellent!
> 
> "alsaplayer -d hw:0,1"  still plays 44Khz sounds too fast, as expected.
> 
> "alsaplayer -d plughw:0,1" now issues the following error messages:
> error on set_period_size (512)
(snip)

looks like a bug of alsaplayer.
please specify sample rate 48000.


Takashi


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