only one app can play sound on Alsa

[roy.nico]

Hello,

I have Ubuntu Lucid. If i dont' mistake, it should be possible to hear several applications playing sound simultaneously, with ALSA. But if 1 app is already playing, then starting a second one give always "device is busy".
Any idea to debug this ?
thanks
nico

[roy.nico]

up?

[Linuxforall]

Pulse is exactly used for this purpose, it can handle multiple streams to multiple or single card one at a time, have you removed pulse btw?