33 lines
692 B
Python
33 lines
692 B
Python
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import numpy as np
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import librosa
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import math
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import sys
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print("Loading file")
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audio, sample_rate = librosa.load(sys.argv[1], duration=60, offset=0, sr=15360)
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print("Getting spectrum")
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spectrum = librosa.stft(audio)
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S = np.abs(spectrum)
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fout = open("spectrum.h", "w")
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print("Writing file")
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fn = 36
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fs = int(len(S) / fn)
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fout.write("const uint16_t spectrum[][4] = {\n")
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for t in range(0,len(S[0]-1)):
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fout.write("{ ")
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f_prev = 0
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for f in [8, 45, 300, 600]:
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v = 0
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for i in range(f_prev, f): v += S[i][t]
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if v != 0: v = int(v/30)
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if v < 0: v = 0
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f_prev = f
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fout.write(str(int(v)) + ", ")
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fout.write("},\n")
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fout.write("};\n")
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fout.close()
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print("Finished")
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