PeterK

Borate, thanks for getting back to me. In videopad, I did check for upgrade and was directed to the page - https://www.nchsoftware.com/videopad/versions.html The windows installation file https://www.nch.com.au/components/vpsetup.exe was downloaded. Running this performs the upgrade. Directory of C:\Users\petak\Downloads 02/04/2022 16:13 6,890,472 videopad-11-38-2022-03-29-64bitpaid.exe 03/04/2022 09:06 6,890,472 videopadsetup64.exe 03/04/2022 09:10 5,817,832 vpsetup.exe The first two files, the one you used and the one I found, both seem the same. Whereas vpsetup.exe seems different. Rolling back to v10.47 and re-upgrading using vpsetup.exe does not reproduce the issue now. The sound works OK. In the investigation I also did a v10.47->v11.34->v11.38, so the rollback was two steps before I re-ran the upgrade. Maybe this affected something. I'll check next time I upgrade. Thanks.

Previously using v10.47 of videopad and I had created a video from screen captures and mobile phone footage. The sound was fine. After upgrade to v11.38 [ ABOUT:Videopad v11.38 64bit Mar 28 2022 18:26:49 ] the sound was distorted. Initially I down graded to v10.47 and all worked again. Check in the community there were issues previous fixed by: - v10.84, open OPTIONS | MEDIA tab and UNcheck the box that reads: Automatically normalize audio volume of external audio/video files. Close VP. Relaunch VP. This did not help. I downloaded and installed an older version - V11.34 and this did not cause issues with the sound. Rather than use vpsetup.exe .. I downloaded and installed the file from the oldversions. videopad-11-38-2022-03-29-64bitpaid.exe [ ABOUT: Videopad v11.38 64bit Mar 28 2022 18:42:58 ] This file states a different time to the software installed using vpsetup.exe. Loaded from... http://www.oldversiondownload.com/oldversions/videopad-11-38-2022-03-29-64bitpaid.exe Note: Date 2022-03-29 on file . Not 28th as in 'About' menu. The sound on the video is now working as before.