On Fri, 2011-08-12 at 12:32 +0530, Arun Raghavan wrote: > On Fri, 2011-08-12 at 12:26 +0530, ashwanik wrote: > [...] > > I changed buffer-time and latency-time for different values in > > gst-pieline but no success. It reduces delay very less amount i.e delay > > is still there > > (2-2.5 sec). > > > > When I use alsasrc and alsasink with the same usb mic getting no delay > > with good audio quality. > > > > Please help to solve the problem. > > I'm guessing the problem also goes away when you load your ALSA sink > with tsched=0? Your ALSA driver is likely broken (don't know what kernel > you're running -- might be an issue that's already fixed). Ah, I missed that you're doing all this on a USB mic, so there's a possibility the problem lies there, but I'm more inclined to blame your playback for the delay. You could easily verify this by plugging a USB headset that you can verify as working with low delays on a laptop. It should also work the same way on the board, isolating the ALSA driver as the cause of your problem. -- Arun