Re: [Openvortex-dev] Alsa-XMMS buffer time weirdness / Quad codec

[Manuel Jander]

Hi,

I guessed there would be some programs having trouble, but not that
much. THe problem is that there are some combinations of period size
that are not supported by the Aureal Vortex causing "clicks".
But it semes that the restriction for the the period size is to picky.
I'll try to fix that soon.

By the way, on ADB address 0x8c and 0x8d i was able to playback audio
through the "surround" dac (STAC9708 codec). Thats means that quad
playback is possible. But i was unable to set the codec in quad mode to
playback a normal stereo stream through 4 speaker. The STAC9708
datasheet states that this is possible setting a certain bit.

Best Regards

On Sat, 2003-07-05 at 15:30, Stanislav Kogan wrote:
> Hello.
> 
> On Sat, 5 Jul 2003 18:56:18 +0300 (EEST)
> "Taisto Kuikka" <address@hidden> wrote:
> 
> > > So, what's so special about 371ms?
> > 
> > Just guessing but 65536 bytes ~ 371.5 ms 44100 Hz 16 bits stereo
> > samples
> 
> Indeed. One thing, though: One would expect it to panic with 341ms
> buffer when playing a 48Khz file. Surprisingly - it doesn't. 341ms is
> the highest buffer which gives distorted output, though.
> 
> Now, isn't 64KB the maximum size of the period?

No. The max period size is 4096 bytes. There are max 64 periods.