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Bug#609441: Pulseaudio


Am 15.01.2011 19:53, schrieb Kevin Krammer:

Which other sound server are you referring to? JACK?

First i would say ALSA.
But your question shows me that i have not understand the sound concept at all.
There are to many components now working on/for the sound.
Where can i get an overview?
My hope is that i can solve the problem, if i can get a chance to understand it.

Some postings seem to indicate a general ALSA setup problem, i.e. one users
says ALSA's aplay won't work either.

In my case i can say that ALSA is basically working on every PC.
And the sound was working perfect with KDE 3.5 with ALSA.
Why it is not working in KDE 4 any more?

But up to now the configuration and interaction of phonon with ALSA is a
Phonon (the programming interface) does not interact with ALSA at all.
Depending in which Phonon backend is being used, this backends multimedia
framework is interacting with ALSA (or a sound server).

This i have not understand.
Phonon is an KDE-API for sound - correct?
Why i have only sound problems with applications where i can't chosse ALSA as audio output?
And i get no sound with Virtualbox even i choose ALSA or something else.

While I am on Debian SID there is most likely not much difference right now
due to the freeze. I have the Xine backend configured and I am not aware of
any Xine or ALSA related setup I would have had to make.

When i read XINE i am thinking just for video.
But it is also a Player. Like VLC or Kaffeine?

But maybe Xine did when I installed it in its role as a mediaplayer.

There must be a reasonable way how applications give the sound data to the hardware.
Up to KDE 4 i thought all this is done by ALSA.
But now it don't know what the way is?

The only thing i know is that phonon is the standard sound interface and
output for KDE.
But how it can be configured when it does not work for applications
which can't use directly ALSA cannot be answered.
Well, the actual output is handled by the multimedia framework used to
implement the chosen Phonon backend (Xine, mplayer, GStreamer, etc).

How can a Multimedia Player be an backend?
I have multiple player installed.
What player is used by kaffeine and flash?
And is ALSA a player also?

Maybe you can check if the player application of the framework your Phonon
backend is using is capable of output.

On the PC mit onboard sound the phonon output is "PNP Audio Device (USB Audio)"
What will this say to me?



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