When loading video files from a Blackvue DR650S-2CH dash cam into the time line the audio track graph shows audio in the first few seconds then goes flat as does the sound.
The files play in other players such as the Blackvue provided and windows Media player and others.
Thanks, Since I posted I resurrected and old software I have not used in years, Amerisoft Video Converter. I ran a conversion on the files from .mp4 to mp4 and bam-o! The integrity and file sizes remained the same but they work in Vegas.