【librosa】librosa.core.autocorrelate

import librosa
import librosa.display

import matplotlib.pyplot as plt


y,sr = librosa.load(audio_file, mono=True, offset=0.0)
print("shape of y:", y.shape, ", sample rate:", sr)

y1 = librosa.core.autocorrelate(y)

plt.figure(figsize=(12, 8))
plt.subplot(2, 1, 1)
plt.plot(y)

plt.subplot(2, 1, 2)
plt.plot(y1)
plt.show()