A very simple online instrument tuner

• npm i
• npm start

• Press start button on the left bottom to activate the mic and begin tuning. Press stop button to stop the audio recording.
• Use the slider or the input field below the meter to select the reference frequency (from 400 to 509 Hz).
• Press the button on the right bottom to toggle between different meter views (percent, needle and note character).

• React / JS / CSS / Bootstrap

• Chris Wilson, for PitchDetect.
• Martin36, for react-gauge-chart.
• Adrià M. Cassorla, for his technical support.

• Test app with high performance equipment and make the necessary adjustments from there.
• Develop native version.
• Any other suggestions are more than welcome.