[non-BE] fix bug reported in Issue 13 with TCX5 ungrouping when TNS is active
Description
Fix for bug when input sampling rate is 48kHz and output sampling rate is smaller (32kHz, 16kHz) with TCX where TNS is active. When the output sampling rate is different as in this case, the ungrouping of the TCX5 sub-frames after TNS filtering does not match the grouping happening before, resulting in audible plopping artifacts when transients are present and TNS is activated. This fix affects all tcx-only modes.
Edited by fotopoulou