公开(公告)号：EP2285135A1

公开(公告)日：2011-02-16

申请号：EP09164750.3

申请日：2009-07-07

申请人： NXP B.V.

发明人： Haas, Christian ,  Walter, Thomas

IPC分类号： H04R1/28 ,  H04R25/00 ,  H04M9/08 ,  H04M1/20 ,  H04R1/10

CPC分类号： H04R1/2807 ,  H04R1/1083

摘要： Embodiments provide a microphone assembly such as a headphone or headset which comprises a mechanical acoustical low pass filter between the microphone and the speaker so as to effectively attenuate higher frequencies fed back to the microphone. The low pass filter may comprise a hole or tunnel which connects a front volume of the microphone with a front volume of the speaker, providing a reliable and effective stable structure. An attenuation material may be provided for adjusting the attenuation of the low pass filter.

摘要翻译： 实施例提供了诸如耳机或耳机的麦克风组件，其包括在麦克风和扬声器之间的机械声学低通滤波器，以便有效地衰减反馈给麦克风的较高频率。 低通滤波器可以包括将麦克风的前音量与扬声器的前音量连接的孔或隧道，提供可靠且有效的稳定结构。 可以提供衰减材料来调节低通滤波器的衰减。