Hi, I found that volume ramping is inside PA now. there's a minor fix here, it is a bug i found after the patch is submitted: line 1781 of sink-input.c : if ((i->thread_info.ramp_info.envelope_dying - nbytes) <= 0) { need to be changed to if ((i->thread_info.ramp_info.envelope_dying - (ssize_t) nbytes) <= 0) { otherwise this argument will never be negative since nbytes is of type size_t which is unsigned. Please change it when you have time, sorry if bring any inconvenience. :)