Hello, Whether passing multiple format infos to negotiate digital passthrough, or setting one of the PA_STREAM_FIX_* flags on a record stream, I'm a bit puzzled how the buffering attributes are supposed to work. Most of the values are expressed in bytes. How should the application negotiate certain timings then? The mapping of bytes to microseconds depends on the bitrate, which is not known to the application until after PulseAudio chooses the exact stream format and returns it. -- R?mi Denis-Courmont http://www.remlab.net/ http://fi.linkedin.com/in/remidenis