__init__.py 文件源码

def read(self, size = -1):
            buffer = self.wav_reader.readframes(self.wav_reader.getnframes() if size == -1 else size)
            if isinstance(buffer, str) and str is not bytes: buffer = b"" # workaround for https://bugs.python.org/issue24608, unfortunately only fixes the issue for little-endian systems
            if self.wav_reader.getnchannels() != 1: # stereo audio
                buffer = audioop.tomono(buffer, self.wav_reader.getsampwidth(), 1, 1) # convert stereo audio data to mono
            return buffer