Hello,
we discovered your notes about ALSA (Advanced Linux Sound
Architecture) on your web pages:
http://www.transgaming.com/showthread.php?news=98
Please, let me comment ALSA issues. Perhaps, your development
people should contact us directly before making such bad assumptions.
> ALSA, of particular interest to TransGaming's Linux audience, does not
> provide much of an added benefit over OSS. The primary speed advantage,
> hardware mixing, a slower kludgy implementation use due to the fact that
> looping sound doesn't appear to be supported; although full duplex
What's looping sound? You can initiate endless ring buffer looping when
you set stop_threshold to boundary (sw_params). I think that this
major drawback does not exist.
> support should be easier to provide than with OSS. The major drawback of
> ALSA is that its mmap interface is not compatible with what is required
> for DirectSound unless undocumented interfaces are used. All in all it
> appears that using ALSA would provide some speed advantages for newer
> cards, but to be done properly would require a rewrite of the winealsa
> driver. Thus we would suggest that, for the time being, people continue
> to use the OSS emulation layer of ALSA with "MMap" = "Y" enabled in
> their config file to get the best performance if it's supported on their
> sound card.
We can do everything with our API like OSS and our API has many other
extensions which OSS does not have.
Again, please, tell your developers that they are wrong and remove this
paragraph from your pages, because this text hurt us.
Jaroslav Kysela
The ALSA project leader
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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