Frame Size time

[marauder2k7]

We have implemented speex in our engine for the time being then we are switching over to the speexdsp when we get a cmake file made for it. For now we are testing with this. We are getting clear audio through our bitstream and its coming out nicely at the other end writing 8 frames each time, as i understand it though the frame size of speex is 20ms no matter what band mode you choose, our engine updates the loop every 32ms, and we are noticing a dip in audio each time, was curious if it is possible to change the frame size timing? or is this something that would need to be fixed by using speexdsp?