f0curvePyin

maelzel.snd.freqestimate.f0curvePyin(sig, sr, minfreq=50, maxfreq=5000, framelength=2048, winlength=None, hoplength=512)[source]

Calculate the fundamental based on the pyin method

This routine is implemented in pure python and is VERY slow

Parameters:

  • sig (ndarray) – the array representing the soud

  • sr (int) – sample rate

  • minfreq – lowest frequency to considere for f0

  • maxfreq – highest frequecy to considere for f0

  • framelength – the fft size

  • winlength – the window length (must be smaller than framelength)

  • hoplength – interval between measurements (in samples)

Return type:

tuple[BpfInterface, BpfInterface]

Returns:

a tuple (freq curve, voiced probability curve)