recording.py 文件源码

def _trim_silence(self, audio: ndarray) -> ndarray:
        def trim_start(sound: ndarray) -> ndarray:
            return numpy.array(list(dropwhile(lambda x: x < self.silence_threshold_for_not_normalized_sound, sound)))

        def trim_end(sound: ndarray) -> ndarray:
            return flipud(trim_start(flipud(sound)))

        return trim_start(trim_end(audio))