Table 2 Reference table for peak-picking based classification techniques

Peak detection

  [60, 68, 106, 108, 113]

Peak-picking and thresholding

  [7]

Peak-picking and thresholding, low-pass filter in frequency domain eliminates spurious notes

  [45]

Peak-picking, maximum likelihood criterion [64] is used

  [71]

Peak-picking, specialist rule system filters peak hypothesis

Peak grouping

  [87]

Partial grouping with monophonic assumption

  [106]

Assumes that partial amplitudes and frequencies do not change significantly across frames

  [108]

Partials of same notes begin and end in similar instants

  [60, 113]

All partials of the same series should have similar amplitudes

  [45, 92, 114]

Notes are classified after onset/offset is detected

  [31]

Chain of pitch formation rules highlight predominant pitch