[edwinbradford]

Thanks, I read that too, but the article I saw said that it was fundamentally broken in all builds of Ffmpeg up to 0.6, I'm using 0.6 or later, I forget which version but definitely post 0.6. Subsequent to Ffmpeg 0.6 it said it was working fine.

I fixed it by boosting the volume in the Ffmpeg encode to max, it appears to cap the volume before it distorts, its not ideal but it will do.

N.B., I don't get it, Google say they will cease support for mp4 so as a content producer I have to encode my video in webm format for native HTML5 playback but the tools for encoding in webm are half finished. Would it not have been better to release user friendly tools with proper documentation and then announce you will cease support for mp4 after? - Just ranting.