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| x, sr = librosa.load('audio.wav') | |
| ipd.Audio(x, rate=sr) | |
| hop_length = 512 | |
| # returns normalized energy for each chroma bin at each frame. | |
| chromagram = librosa.feature.chroma_stft(x, sr=sr, hop_length=hop_length) | |
| plt.figure(figsize=(15, 5)) | |
| librosa.display.specshow(chromagram, x_axis='time', y_axis='chroma', hop_length=hop_length, cmap='coolwarm') |
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