9478

MIDI PPQN Duration Calculator

MIDI sequencing hardware and software use a variable number of timing resolutions, with 24 PPQN (parts or pulses per quarter note) being the MIDI File Specification Standard used for MIDI clock byte synchronization, as well as three-byte synchronization needed for MIDI Time Code and Song Position Pointer events. Thus all sequencers should use PPQN that at least have the factors of as base factors used by any higher resolutions that they support, if master/slave synchronization is needed.

SNAPSHOTS

  • [Snapshot]
  • [Snapshot]
  • [Snapshot]

DETAILS

Some commonly used values of PPQN are typically based on either 2, 3, 5, or 7, and can be considered families:
2 48 96 192 384 768
3 72 144 216 288 360
5 120 240 480 960
7 168 436 972
The most unique (and non-conforming) use is of , which is used by Finale. Of course, variants of the above can be used with different combinations of such prime factors; however, in common practice, and in my experience, the most commonly used are (besides 24) 96, 240, 384, and 480. Of these, in my opinion, 96 and 384 are most applicable to recording human timing nuances without needing further masking of the feel by using a factor of 5, or any other beyond 2 and 3 for the universal straight and swing feels that are in use.
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.









 
RELATED RESOURCES
Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Powered by Wolfram Mathematica © 2014 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+