To detach audio from a video file using Quicktime, follow these steps:
The file format will have an .m4a audio extension, and can be imported into an audio or video editing program.
If you are on a mac, you can use quicktime to record yourself for a video lecture. View instructions how to record yourself with Quicktime.
If you are on a mac, you can use quicktime to record a video lecture presenting. View how to record yourself with quicktime and powerpoint.
To trim a QuickTime video clip, open the video file in the QuickTime Player application.
To fine-tune the start and stop, you can also use the left/right arrow keys to nudge the playhead left or right, then type “i” to move the starting point to the playhead’s position, or type “o” to make the ending point at the playhead’s position. As another option, you can click and hold on the yellow slider to get a zoomed in view of the playhead, and do more precise edits in that view.
