Hello, an update of JJack - Java bridge API for JACK has been released. http://jjack.berlios.de/ Version 0.2 integrates much better with the JACK thread architecture. The JACK processing-thread now itself executes Java code inside the Java virtual machine, after it has been attached to it calling AttachCurrentThread(..). (Thanks to Stéphane Letz for giving a hint about that.) Enjoy and make noise, Jens