fixed-point: more work on the time window (almost done)
fixed-point: more work on the time window (almost done)

mumble-voip/celt-0.7.0,oneman/opus-oneman,dezelin/celt,Distrotech/celt,mumble-voip/celt-0.11.0,dezelin/celt,oneman/opus-oneman,mumble-voip/celt-0.7.0,mumble-voip/celt-0.11.0,mumble-voip/celt-0.11.0,Distrotech/celt,mumble-voip/celt-0.7.0,dezelin/celt,oneman/opus-oneman,Distrotech/celt