I might have done some typos here and there, thanks for fixing it. Feel free to send the corrected version back to me via email along with your questions.
I re-watched the video I put on youtube, yes I can see there is a little delay, more noticeable on the car engine noises. If you can fix it without too much effort I won't mind but it's not too disturbing for me.
SilverWook thanks I'll check that documentary on youtube