I've recently upgraded to 365 from PD18.
On a recent video the final rendering has distorted the audio (my voice), as if it had been recorded on a cheap mic, sounds like it's clipping. There is a clear, noticable difference between the original audio (recorded with a lav mic into a Sony Digital recorder) and the outputted .MP4 file. My original audio source file shows none of this distortion. Also, there is no distortion on sound in the PD 'edit' mode when I play it. The sound file waveform is statndard with no yellow peaks to indicate any overloading.
The audio 'set up' on the 'Produce' page dialogue box is set to the standard of AAC, Stereo, 384 Kbps.
I checked the Forum and it seems this happened a few years ago (PD13/14?) and PD issued a patch to cure it. Some folk seem to have exported the Mp4 into another app to rectify the issue.
Has anyone else had this problem?