python 提取wav文件的时域特征代码

以下是Python语言提取WAV文件时域特征的代码：

import matplotlib.pyplot as plt
import numpy as np
import wave
import sys

# 打开WAV文件
wave_file = wave.open("audio.wav", "rb")

# 读取参数
sample_rate = wave_file.getframerate()
num_channels = wave_file.getnchannels()
sample_width = wave_file.getsampwidth()
num_frames = wave_file.getnframes()

# 读取数据
data = wave_file.readframes(num_frames)

# 将数据转换成数字
if sample_width == 1:
    data = np.fromstring(data, dtype=np.uint8)
elif sample_width == 2:
    data = np.fromstring(data, dtype=np.int16)
else:
    raise ValueError("Unsupported sample width")

#