Macos – Play video with slower playback speed on OS X

macosvideovideo-playback

I have a movie that I shot at 240 frames per second. I'd like to play it back at 24 frames per second on my Mac. How can I do this?

How do I slow down playback to 10% speed for an MP4 file?

Best Answer

In QuickTime Player option-clicking the forward button increases the speed by 0.1. Clicking the backward button plays videos in reverse though. You can slow down videos by running this in AppleScript Editor:

tell application "QuickTime Player" to set rate of document 1 to 0.1

Or through a terminal:

osascript -e 'tell application "QuickTime Player" to set rate of document 1 to 0.1'

VLC's playback speed can be changed in smaller increments from the menu bar.

In the menu, the lowest you can set is 0.25. If you press ⌘- the rate can be set even lower, but only to fixed values of 0.5, 0.33, 0.25, 0.12, 0.06, 0.03 and 0.02.

In Movist you can press ⇧⌘← or adjust the slider in the control HUD:

Movist can reduce the playing speed by half, not more.

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