Pulseaudio is an interesting old way to allow audio to be carried or
duplicated and perhaps other useful things. I am an Electrical Engineer
and studied the idea of mixing a lot of audio signals on a high
frequency. This is what Mr.Lennart Poettering is trying to do with what
he calls Pulseaudio. I don't know just how it is done but it does work.
I got Pulseaudio working on my Fedora 8 operating system and it
appeared to be working properly, but I didn't know enough about it to
test many features. But I did discover that two non-Fedora applications
called Skype and gMFSK will not function with Pulseaudio in operation.
This problem I ask Lennart at Pulseaudio and he said this:
On Thu, 10.01.08 09:13, Karl Larsen (k5di(a)zianet.com) wrote:
> I got pulseaudio working on F8 and the normal audio on
> such is fine. But I tried gMFSK which is an application that uses the
> sound-card DSP engine. It looks fine but when I try to receive digital
> data it suffers very bad interference and it will not transmit because
> it says /dev/dsp is busy.
gMFSK seems to be a program that uses OSS (/dev/dsp) directly. For
those you have two options:
1) Use "padsp" to redirect it to PA. Just prefix your application call
2) Use "pasuspender" to temporarily tell PA to give up access to the
audio device. This is probably the better way to fix this if you
need lowest-possible latencies. (I am not sure if you need those,
but I assume so, given this seems to be some modem sw?)
> Sype comes up fine and appears to receive data but when I
> call anyone or answer a call they can't hear me at all, and all I hear
> is noise.
Skype is closed source software. It's very difficult to get this
working out of the box for you, due to its nature.
-- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net
ICQ# 11060553 http://0pointer.net/lennart/
I did both things and neither got my gMFSK or Skype working. There
is more to this than I have knowledge of.
This problem caused me to delete all the pulseaudio from my F8
computer with yum remove *pulseaudio" which was a huge list! I did it
and nothing worked on the F8 system after that. I had to re-load F8 and
it came up working fine. But now, after removing the pulseaudio software
I cannot yum vlc from livna any more.
Pulseaudio is a big error in my opinion. It does nothing a normal
user of Fedora wants but raises all kinds of issues with other software.
I really think Fedora needs to leave Pulseaudio off it's systems.
Karl F. Larsen, AKA K5DI
PGP 4208 4D6E 595F 22B9 FF1C ECB6 4A3C 2C54 FE23 53A7