pyaudio_driver.py 文件源码

def  callback(self, in_data, count, time_info, status):
                if self.pos + count > self.range[1]:
                    output = self.signal[self.pos:self.range[1], :]
                    status = pa.paComplete
                    if self.stop_func: self.stop_func()
                else:
                    output = self.signal[self.pos:self.pos + count, :]
                    status = pa.paContinue
                    self.pos += count
                return (output.flatten().astype(np.float32).tostring(), status)