i think the choices are alsa and jack. jack would be a good choice for everything. You can connect audio between applications, and even pulseaudio can send audio to jack. my pd version dont work well with jack, I dont know why. Maybe I did something wrong during instalation.
2010/7/26 patrick puredata@11h11.com
hi,
my os: ubuntu 10.4 pd-extended 0.42.5-rc4
when opening pd, no other application can use the soundcard. is pd able to use pulse? if not, what is the solution to not block other application from using the soundcard?
pat
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