roll off frequency

IT专业英... ... roll-about videoconferencing 滚动式视频会议 roll-off frequency 衰减频率 rolled annealed copper 轧制退火铜 ...

插入反转控制器_馆档网 ... "roll-in" 转入" "roll-off frequency" 滚边频率" "roll-out" 转出" ...

? 滚降频率(Roll-off Frequency)：滚降频点是指子带能量达到总能量95％处的频点。大多数音乐和语音中浊音的能量集中在低 …