30 Jul
2005
30 Jul
'05
7:01 a.m.
Hi Arnold and others :) ,
Currently not, but AFAIK the design of JACK allows any kind of
streaming data.
Likely. Why isn't JACK the default?
But OTOH it would be nothing bad to also play bells and
whistles with low latency, right?
Hehe. I don't think that JACK will die soon ;-) .
Typical kde-game has beeps and short bings as sounds,
not a
full soundenvironment.
And it certainly doesn't need realtime.
Every other game uses gl or sdl and the needed
soundsystem...
Heh, without any doubt the current KDE games don't need
realtime for audio.
What I'm talking about are shooter games or even car races,
maybe with force feedback joysticks. You press the fire
button, the enemy dies and after that you hear the sound of
your gun? You play a car race, crash your competitor and
after 2 seconds you'll hear the audio?
What about
keeping audio
and video in sync?
1: This will be done by the underlying soundsystem, not by
kde. 2: Can Jack do video? What about the
(still missing) Garage Band
clone on the KDE desktop?
This will use jack directly... All of these
will need low latency, and especially Garage
Band is a product for Amateur use.
But you don't need low latency for the "You got mail"-sound
or the bing of kopete. And therefor it is not the solution
to struggle with jack. And jack can't do decoding, which
the kde apps need!
OK, that's an argument.
We're on
free software, and there's no need (at least
from a technical POV) to deny desktop users the use of
low latency audio and video. We're at an important "point
of no return": We can make the right decision *now* or
the audio and video struggle will continue.
We don't make a decision, apart from beeing open which
soundsystem the future brings. We from kde don't want to
focus on one system and realize its not maintained two
years later... bad experience from the past... just face it: jack is _very_ good for professional
and
semi-pro usage in audio. But it is not a full
multimedia-system (audio _and_ video) and it doesn't decode
any files. These are the things kde needs!
OK, still there's no video support, but decoding counts. It's
not the Job of JACK.
[...]
My last comment: You from LA[UD] won't change
KDE's
decision, which already has been made... towards a layer
between kde and the soundsystem to use to be able to choose
the soundsystem during runtime...
The goal is not to change any decision. I'm interested in
drawing a picture to compare what we need and what we already
have to simplify and improve the Linux desktop experience.
And Linux doesn't have to choose _the_ one
soundsystem to
rule them all. The big advantage of Linux is
exchangability.
In theory, yes.It's a fairy tale as the tale about open file
formats. Can I open a Rosegarden file in MusE? No...
Best regards
ce