lks/reverse-goertzel
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add variables to control cycle resolution and count

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This commit is contained in:
Lucas Schumacher 2023-11-15 14:21:18 -05:00
parent 00adbb1cb4
commit d1df8fdf97
1 changed files with 7 additions and 5 deletions
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12
reverse_goertzel.py
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@ -28,16 +28,18 @@ def sinusoid(n, cycles=1):
return result return result
def main(): def main():
cycles = 2 samp_per_cycle = 512
signal = goertzel_sinusoid(cycles, 1, 1024, 1) cycles = 3
reference = np.array(sinusoid(1024, cycles)) len = cycles * samp_per_cycle
signal = goertzel_sinusoid(1, cycles, samp_per_cycle, 1)
reference = np.array(sinusoid(len, cycles))
error = reference - signal error = reference - signal
print("max error:", error.max()) print("max error:", error.max())
x = np.array(range(0, 1024)) x = np.array(range(0, len))
plt.plot(x, signal) plt.plot(x, signal)
plt.plot(x, reference) plt.plot(x, reference)
plt.plot(x, error) plt.plot(x, error)
#plt.plot(x, error*1000/3) #plt.plot(x, error*100)
plt.show() plt.show()
if __name__ == "__main__": if __name__ == "__main__":