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產生sine wave 波型與聲音
Example Code

import wave

import numpy as np

import matplotlib.pyplot as plt

f = wave.open(r"sweepDoMiSol.wav", "rb")

# 格式資訊

# (nchannels, sampwidth, framerate, nframes, comptype, compname)

params = f.getparams()

nchannels, sampwidth, framerate, nframes = params[:4]

# 波形數據

str_data = f.readframes(nframes)

f.close()

# bytes to np.short

wave_data = np.fromstring(str_data, dtype=np.short)

# 轉換為雙聲道

wave_data.shape = -1, 2

wave_data = wave_data.T

# 總時間長度

time = np.arange(0, nframes) * (1.0 / framerate)

# 音訊資訊

print(nchannels, sampwidth, framerate, nframes)

# 畫波形

plt.subplot(211)

plt.plot(time[0:100], wave_data[0,0:100])

plt.subplot(212)

plt.plot(time[0:100], wave_data[1,0:100], c="g")

plt.xlabel("time (seconds)")

plt.show()

Note and Comments
result