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>>>>> Tanveer Singh writes:
Tanveer> One question though, in windows if application A is playing
something, and I
Tanveer> start application B which plays some other sound, I usually hear a
mix of
Tanveer> both through the speakers, can such a thing happen in linux too?
Tanveer> Just speculating.
This is what sound servers are invented for ? Multiplexing. Instead of
your app, sound servers open your sound card device file, and your app
communicates with those sound servers over TCP|UDP/IP, Unix domain
sockets, or any other IPC or network protocol you can think
of. ESounD/aRTSd/jackd/pulseaudio/nasd etc... are sound servers. But the
good (or bad) thing is that there is no standard protocol for
communication with sound servers, so you need to hack for each sound
server.
And each sound server has its own pros/cons. And some sound servers even
expose themselves as an ALSA plugin, PulseAudio is one such sound
server. So if your app understands ALSA, all audio data is routed to
PulseAudio via PulseAudio's ALSA plugin. So your ALSA app can use
PulseAudio without being aware of PulseAudio :) .
BtW, there is another sound system, known as OSS[1] which is the
standard sound system in Unix (FreeBSD uses OSS). So if you're writing a
cross-platform app, you need to target OSS.
So the answer to query is you need to chose a appropriate sound server.
References:
[1] - http://en.wikipedia.org/wiki/Open_Sound_System
HTH
- --
Ashish Shukla आशीष शुक्ल http://wahjava.wordpress.com/
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