https://github.com/javidcf/bobblehead

A bob-based beat tracker
https://github.com/javidcf/bobblehead

Last synced: 9 months ago
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A bob-based beat tracker

• Host: GitHub
• URL: https://github.com/javidcf/bobblehead
• Owner: javidcf
• License: mit
• Created: 2016-05-26T11:56:56.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2016-05-26T15:56:49.000Z (about 10 years ago)
• Last Synced: 2025-09-23T10:01:59.887Z (9 months ago)
• Language: C++
• Size: 3.37 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Bobblehead

A bob-based beat tracker

This is just a small proof of concept of a beat tracking system based on

the visual input of a person bobbing the head with the rhythm of the music.

The app is built with [openFrameworks][1] and uses the [ofxCv][2] addon to

interact with [OpenCV][3].

The logic of the program is based on the idea of following the head of the

person using Viola-Jones object detection and identifying sudden changes in

the velocity. There is also some Kalman filtering to smoothen things a bit.

When some reasonable beat duration is inferred, the tempo is shown on the

screen. Slow tempos are somewhat tracked, faster tempos not so much :(

The program does not require any special controls, but you can press key `d`

to hide the visual tracking information. Pressing `m` toggles a visual

metronome that does not work nearly as well as it should; beat phase seems

to be harder to grasp.

[1]: http://openframeworks.cc

[2]: https://github.com/kylemcdonald/ofxCv

[3]: http://opencv.org