[ANNOUNCE] New Mixer Handling in PA 0.9.16/F12

Jeff Garzik jgarzik at pobox.com
Wed Jul 29 13:35:44 UTC 2009


Lennart Poettering wrote:
> On Wed, 29.07.09 06:48, Jeff Garzik (jgarzik at pobox.com) wrote:
> 
>> Karel Zak wrote:
>>> On Tue, Jul 28, 2009 at 10:07:32PM +0200, Lennart Poettering wrote:
>>>> On Tue, 28.07.09 15:48, Bill Nottingham (notting at redhat.com) wrote:
>>>> Yes. You cannot select them as record source, you cannot mute or
>>>> unmute them, you cannot change their volume. "CD", "PC Speaker",
>>>> "MIDI" and so on are just obsolete. 
>>> This reminds me your note:
>>>
>>>     https://tango.0pointer.de/pipermail/pulseaudio-discuss/2009-July/004519.html
>>>
>>>     PA does not make use of hardware mixing. And I don't plan to change
>>>     that. It's obsolete technology. CPUs these days come with extensions
>>>     such as MMX or SSE precisely for speeding up DSP tasks such as PCM
>>>     mixing. This is way more flexible that hw mixing, and definitely the
>>>     way to the future, both on the desktop and on embedded envs as well.
>>>
>>>
>>> The "obsolete technology" -- who made this decision? Is it your private
>>> opinion or any suggestion from sound card manufacturers?
>>>
>>> It seems that HW companies still produce the "obsolete technology".
>> Quite agreed [says a former kernel audio driver maintainer], and I will  
>> go even farther:
> 
> Maybe since the times you worked on audio drivers the design of the
> sound cards changed a little and stuff like SSE became largely available?

I am well-versed in modern audio hardware -- moreso than you, apparently.

	Jeff






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