Hi! The BIG difference when the output is oss and bluetooth is when bluetooth output is used with paplay, then paplay never receives a PA_COMMAND_REQUEST op, i don't know why. In the background PA dispatches PA_COMMAND_GET_PLAYBACK_LATENCY messages continuously (as seen with OSS output). The playback_stream_request_bytes() function is only called from handle_seek() and never called from sink_input_pop_cb() (which function is also never called)! The call chain is not so trivial, please help me how to find the point where sink_input_pop_cb() should be called and why PA cannot reach this point. BR, Krisztian