def read_chunk(self, chunksize):
        """Read a chunk of audio data from the audio stream.

        This method reads a chunk of audio data from the audio stream. The
        specified number of frames, given by `chunksize`, is read from the
        `proc` stdout. The audio data is returned as a NumPy array, where
        each row corresponds to a frame and each column corresponds to a
        channel. If there is not enough audio left to read, the remaining
        portion is padded with zeros, ensuring that the returned array has
        the desired length. The `pos` attribute is updated accordingly.

        Parameters
        ----------
        chunksize (float):
          The desired number of audio frames to read.

        """
        # chunksize is not being autoconverted from float to int
        chunksize = int(round(chunksize))
        s = self.proc.stdout.read(self.nchannels * chunksize * self.nbytes)
        data_type = {1: "int8", 2: "int16", 4: "int32"}[self.nbytes]
        if hasattr(np, "frombuffer"):
            result = np.frombuffer(s, dtype=data_type)
        else:
            result = np.fromstring(s, dtype=data_type)
        result = (1.0 * result / 2 ** (8 * self.nbytes - 1)).reshape(
            (int(len(result) / self.nchannels), self.nchannels)
        )

        # Pad the read chunk with zeros when there isn't enough audio
        # left to read, so the buffer is always at full length.
        pad = np.zeros((chunksize - len(result), self.nchannels), dtype=result.dtype)
        result = np.concatenate([result, pad])
        # self.proc.stdout.flush()
        self.pos = self.pos + chunksize
        return result
Read a chunk of audio data from the audio stream.

        This method reads a chunk of audio data from the audio stream. The
        specified number of frames, given by `chunksize`, is read from the
        `proc` stdout. The audio data is returned as a NumPy array, where
        each row corresponds to a frame and each column corresponds to a
        channel. If there is not enough audio left to read, the remaining
        portion is padded with zeros, ensuring that the returned array has
        the desired length. The `pos` attribute is updated accordingly.

        Parameters
        ----------
        chunksize (float):
          The desired number of audio frames to read.

        
moviepy/audio/io/readers.py