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What is PulseAudio and what does it do?
PulseAudio is a sound system that’s available on many linux-based machines. It is typically used to pipe audio between applications on a computer. But it natively supports sending audio through a network too, just as we want! So this post is mostly about setting up PulseAudio for a networked sound setup.
How does PulseAudio work with multicast RTP?
Assuming you have the bandwidth, PulseAudio can send an uncompressed stream via RTP from one node to another. It also has the ability to use multicast RTP and send one stream to … anyone that wants to listen. Keeping to just two rooms for the sake of discussion, below is a diagram of what I’ve got now:
How does a multi room audio system work?
I think that very high-end systems have all the speakers in the house wired back to a central location, where a massive multichannel audio system powers them, providing independent audio routing for rooms and other neat things like that. Our speakers, on the other hand, are mostly wired to a feed point in each room.
How does module-udev-detect work in PulseAudio?
Let module-udev-detect look for the supported cards and then select the profile you want, that will make the right sinks show up. In addition to the general device driver options described above this module supports: The ALSA device to use. (defaults to “default”) The desired fragments when opening the device. (defaults to 12)
PulseAudio, previously known as Polypaudio, is a sound server for POSIX and Win32 systems. A sound server is basically a proxy for your sound applications. It allows you to do advanced operations on your sound data as it passes between your application and your hardware.
Why is PulseAudio not connecting to the server?
Feb 15 21:45 : Cannot connect to server in PulseAudio output “pulseaudio” (attempt 1): Connection refused In this case, your problems are twofold: You are running mpd as user mpd which has no rights to access pulseaudio as you, the interactive user, have.
Why is MPD not allowed to access PulseAudio?
You are running mpd as user mpd which has no rights to access pulseaudio as you, the interactive user, have. You are enjoying PulseAudios X11-bell plugin which requires access to your X11 session, a right mpd was not granted before. Solutions: To remedy cause 1, add user mpd to the pulseaudio groups so that mpd can even start pulseaudio on demand:
How to make PulseAudio work again in Ubuntu?
$ pacmd No PulseAudio daemon running, or not running as session daemon. Here’s my default.pa file. Try putting it in the original folder, making sure it has the right permissions. Next time backup important files before you modify or delete them, but I guess you learned that lesson already.