How to increase volume in QuickTime Player?
I have a recorded video. The audio is low. I want to enlarge the volume to make it into a new video with enhanced audio. In my QuickTime Player Version 10.5 in my Macbook Air, when I play the video, I cannot find a place where I can adjust the audio setting. I read on the web some past discussion. It mentioned "Open Window" and choose "Movie Properties". I do not see such feature. Please help.
MacBook Air