How Our Guitar Tuner Works

Frequency Detection

Our tuner uses advanced audio processing to detect the precise frequency of the string you're playing.

This method allows the tuner to accurately identify the note you're playing even in noisy environments.

Note Identification

The detected frequency is converted to the corresponding musical note and shows how close you are to perfect tuning.

Once the frequency is detected, our algorithm converts it to the corresponding note name (e.g., E, A, D, etc.) and octave. We also calculate the note's "cents" deviation, which is a unit of measurement for the note's deviation from the standard pitch.

Visual Feedback

The meter and color indicators help you understand whether to tighten or loosen the string to achieve perfect tuning.

This design makes tuning simple and intuitive, even for beginners.

Technical Details

Uses Web Audio API for audio capture and processing
Uses aubiojs library for high-precision pitch detection
Supports custom A4 reference frequency (default 440Hz)