https://github.com/davidje13/pitchcheck

https://github.com/davidje13/pitchcheck

Last synced: about 1 month ago
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• Host: GitHub
• URL: https://github.com/davidje13/pitchcheck
• Owner: davidje13
• Created: 2023-02-19T15:21:28.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-06-09T12:52:01.000Z (7 months ago)
• Last Synced: 2024-10-20T02:38:07.226Z (3 months ago)
• Language: JavaScript
• Homepage: https://tune.davidje13.com
• Size: 109 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Pitch Check



A simple tool to show the current note being picked up by the microphone. Can be used

for tuning stringed instruments.

Displays a raw frequency graph, the peak frequency, decibel level, equivalent note,

and the difference from the ideal note (in 10 cent intervals).

Extracted frequency is accurate to ±0.05Hz at lowest supported pitch

(A1), and more accurate at higher pitches. Tested with ideal sine waves.

Uses the baseline A4 = 440Hz.

Volume is measured using the "Z" weighting and reported in decibels relative to a

reference pressure of 20 micropascals. Note that the absolute decibel reading may be

unreliable due to attenutation or gain in the microphone hardware or software.