Hi, so i found this about sys/audioio.h http://audacity.sourcearchive.com/documentation/1.3.3/classAudioIO.html So what can i do, my c++ goes here to end :-) i think Haiku have good audio (media and midi kit, oh is see my i mast go deeper in this kits ) stuff. Anyone can help to write a wrapper for sys/audioio.h, some apps used this eg. Espeak. The other waht i can, is delete from espeak, a play audio stuff, so we have "speak" binare (this goes in time :-) ) and write a new play audio class, but i not sure , is this the good way?, i like Espeak team say, here this is the Haiku port, pleas update into your project. ( http://espeak.sourceforge.net/ ) ---- PS: i can genarete wit "speak" in terminal wav files, with my input text :-) thats cool :-)