我正在编码WAVE音频文件的基本频率analisys，但是在从WAVE帧转换为整数时遇到麻烦。
这是我的代码的相关部分：
import wave
track = wave.open('/some_path/my_audio.wav', 'r')
byt_depth = track.getsampwidth() #Byte depth of the file in BYTES
frame_rate = track.getframerate()
buf_size = 512
def byt_sum (word):
#convert a string of n bytes into an int in [0;8**n-1]
return sum( (256**k)*word[k] for k in range(len(word)) )
raw_buf = track.readframes(buf_size)
'''
One frame is a string of n bytes, where n = byt_depth.
For instance, with a 24bits-encoded file, track.readframe(1) could be:
b'\xff\xfe\xfe'.
raw_buf[n] returns an int in [0;255]
'''
sample_buf …