Audio support in Ubuntu

Agenda

• mixing different audio sources (multiple source/multiple sink)
• Handling dynamic hardware changes (plugin speakers, new devices)
• pro audio / games (low latency)
• terminal clients (remote sound)
• desktop sound

Existing solutions

• esound, current solution for warty. gnome/gstreamer talking to esound, esound using alsa/oss-emulation as backend
• alsa (dmix), existing applications can use it, doesn't need to have an interface to a sound daemon.
• polypaudio: replacement for esound, currently maintained, same idea, better implementation.
• jackd: has an approach for realtime capabilities, although not in a secure way, non-standard setup for kernel.

Realtime Audio

• Two camps, one promoting no/low latency solution (jackd), other "camp" more security concerned.
• For realtime requirements, either provide a special kernel in universe which can be installed for those requirements, or realtime audio should be encouraged as a dedicated distro, derived from Hoary.

Hoary goals

• go with polypaudio, gnome goes this way as well.
• evaluate running the sound daemon as one user process, not necessarily as the user logged in (one instance serving all users).

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