33 RPM
33 RPM


33 RPM free download for Mac

33 RPM1.1.8

10 December 2012

Music transcription tool speeds up, slows down, loops audio.


33 RPM brings a little back from a time of LPs and record players, just without the scratches. In the past, a musician would learn a piece of music by adjusting the speed of their record player and then methodically practice along with the slower version of the song.

33 RPM is an excellent tool to transcribe music, by leveraging the power of QuickTime to provide an easy way to slow down, speed up, and loop your media - all without changing the pitch of the music. But if you enjoy those chipmunk-like voices, 33 RPM also has you covered with independent controls to alter the pitch and speed of your audio.


  • Adjust the rate from 1% to 200% of the original song without changing the pitch
  • Change the pitch up to one octave without altering the speed
  • Easily select portions of a song to loop
  • Works with the Apple Remote and the media controls on Apple keyboards
  • Play any QuickTime-compatible audio or video files, including MP3, AAC, M4P, AIFF, MOV, and AVI
  • Works with the Perian and Flip4Mac WMV Player plug-ins for QuickTime to play Flash and Windows Media content
  • Elegant interface, designed specifically for the Mac

What's new in 33 RPM

Version 1.1.8:
  • 33 RPM is now available as a free product.
  • Tested and verified for OS X 10.7 Lion and OS X 10.8 Mountain Lion.
  • Minor UI improvements.
  • Minor bug fixes.

Join over 500,000 subscribers.

Subscribe for our newsletter with best Mac offers from MacUpdate.

How would you rate 33 RPM app?

3 Reviews of 33 RPM

19 April 2014
Version: 1.1.8

Most helpful

Nice free app. No frills, but does just what I want it to.
19 April 2014
Version: 1.1.8
Nice free app. No frills, but does just what I want it to.
01 September 2009
Version: 1.1.4b
Simple but it is great to give it a swing. It works great for me.
02 June 2009
Version: 1.1.3
This program is nothing special. Quicktime Player can slow down, change pitch, and loop. This offers no better visual interface, and the quality is no better. Other programs designed for this purpose generally have better quality sound than this one. Maybe in the future it will be more worthwhile, but for now I'd skip it.
Show comment (1)