https://unframework.github.io/dtmf-detect/
WebAudio demo to detect touch-tone DTMF codes (phone keys)
https://unframework.github.io/dtmf-detect/
Last synced: 2 months ago
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WebAudio demo to detect touch-tone DTMF codes (phone keys)
- Host: GitHub
- URL: https://unframework.github.io/dtmf-detect/
- Owner: unframework
- Created: 2016-11-07T02:36:01.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2024-11-24T18:29:01.000Z (7 months ago)
- Last Synced: 2025-03-19T18:52:52.696Z (3 months ago)
- Language: CoffeeScript
- Homepage: https://unframework.github.io/dtmf-detect/
- Size: 404 KB
- Stars: 31
- Watchers: 0
- Forks: 8
- Open Issues: 0
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Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
Awesome Lists containing this project
- awesome-ctf-resources - DTMF Detection - Audio frequencies common to a phone button. (Steganography)
README
# In-browser DTMF Detection Demo
Using WebAudio to detect DTMF codes (touch-tone phone keys). Live demo here: https://unframework.github.io/dtmf-detect/
## References
- https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling
- http://dsp.stackexchange.com/questions/15594/how-can-i-reduce-noise-errors-when-detecting-dtmf-with-the-goertzel-algorithm#comment26780_15594
- https://github.com/mmckegg/audio-rms
- https://github.com/antoinet/webaudio/blob/master/dtmf-demod.html (original FFT approach which did not pan out)
- http://jetcityorange.com/dtmf/