[sldev] [VWR] openAL wind generator WIP

[Robin Cornelius]

On Jan 14, 2008 2:02 AM, Carsten Juttner <carjay at gmx.net> wrote:
> Dzonatas wrote:
> > Yes, now it would be great if OpenAL and other programs would work
> > nicely with ALSA. They all treat sound like the older OSS.
>
> Hm, could you elaborate on this a bit? OpenAL has several audio backends
> including ALSA. I use the dmix plugin-in to be able to open ALSA from
> several sources and it works fine.

We may need some documentation just to point users in the correct
direction or give some example configs.

>
> But for my personal experience, both of my soundcards (built-in Intel
> chipset and USB) produced a nasty distortion (as if samples were
> skipped) when used with OpenAL and the default settings. I had to set a
> fix rate of 44100 in asound.conf to "fix" this.


Hm thats interesting. I am getting a transient distortion on the front
edge of *some* samples when played normally. Soft had pointed this out
too. Sounded a bit like there was a buffer misalignment or possibly an
offset wrt audio zero that caused a step function at start of
playback.

I will test the asound.conf myself to see if thats my issue too.
Shouldn't openAL just do the right thing? if i stuff in PCM data at a
given frequency and play it? or is this a openAL->hwdriver issue on
some chipsets where the chipset *expects* PCM data at 44.1kHz so
openAL must know this in advance.

Robin