vincent-perrier wrote: > Hello, > I have made an UML virtual machine that uses the pulseaudio > to transmit sound to the host through the network. > My question: since ALSA-using applications transmit sounds to and from > the host very well using pulse, why should the JAVA (sun jdk1.7.0) use > the pcm that needs padsp command and seems not as good at all? padsp simply adds LD_PRELOAD library that tells the dynamic linker to intercept all open() calls (and others) which check to see if the file that is being opened == /dev/dsp (i.e. the OSS audio device). If Java uses OSS sound then padsp is needed to "hijack" these calls and force the audio into pulseaudio. Now, I know next to nothing about java and sound, but recently Ioana Ivan wrote on this list about native java support for pulseaudio: <quote> We've been trying to write an implementation of javax.sound.sampled.Mixer(and the associated classes: SourceDataLine, TargetDataLine, Clip, and Port) that uses pulseaudio as a backend. </quote> You may want to check the archive for that message and get in touch. :) Subject was: "java sound implementation using pulseaudio - ports" Someone else may be able to help with your current issues too :) HTHs Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]
