sample.py 文件源码

def resample(self, samplerate):
        """
        Resamples to a different sample rate, without changing the pitch and duration of the sound.
        The algorithm used is simple, and it will cause a loss of sound quality.
        """
        assert not self.__locked
        if samplerate == self.__samplerate:
            return self
        self.__frames = audioop.ratecv(self.__frames, self.samplewidth, self.nchannels, self.samplerate, samplerate, None)[0]
        self.__samplerate = samplerate
        return self