On Wed, 21.01.09 13:44, Baek Chang (baeksan at ccrma.stanford.edu) wrote: > How is the latency obtained when using bluetooth in pulseaudio. By latency > I mean something similar to snd_pcm_delay(). Since bluetooth doesn't use > alsa, how is the time delay calculated from writing data to actually hearing > it out of the dac? AFAIK Bluetooth doesn't really offer a sensible way to query the current delay, not even a2dp. In fact a2dp doesn't even offer flow control. The clocking part in the PA BT module is currently lacking. I just bought myself a bit of BT hardware so that I can hack on this and try to work around the limitations of BT a bit. Lip-sync audio/video with a BT headset is probably not going to happen, though. And that is not a limitation of PA but of BT. Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4
