我目前有以下代码,使用pyaudio
模块生成一个变频率的正弦波:
import pyaudio
import numpy as np
p = pyaudio.PyAudio()
volume = 0.5
fs = 44100
duration = 1
f = 440
samples = (np.sin(2 * np.pi * np.arange(fs * duration) * f /
fs)).astype(np.float32).tobytes()
stream = p.open(format = pyaudio.paFloat32,
channels = 1,
rate = fs,
output = True)
stream.write(samples)
但是,除了播放声音之外,有没有办法将声音写入音频文件中?