To Do: Guitar tuner

Data

• single notes in wav files: string_1.wav, string_2.wav, string_3.wav
• Guitar notes and corresponding frequencies:
  • E1: 329.63 Hz
  • B2: 246.94 Hz
  • G3: 196.00 Hz
  • D4: 146.83 Hz
  • A5: 110.00 Hz
  • E6: 82.41 Hz
• Values of 1 cent for accuracy of each string: 0.15, 0.15, 0.15, 0.08, 0.08, 0.04 (see: http://zerocapcable.com/?page_id=225 and https://www.engineeringtoolbox.com/octave-bands-frequency-limits-d_1602.html)

Goal

For each wav files:

• Perform a spectral analysis
• Automatically determine the played note with the accuracy in cent