An Electret Condenser Microphone (ECM) is widely as general the microphone devices. Yearly, the miniaturized and the lowering the voltage of the cellular phone for the power consumption decrease are accelerated. Though, the current ECM has progressed in small size and thin shape, the FET has been not designed as low voltage operation in spite of small packages. This paper pays attention to the P-MOS FET of the low current consumption for miniaturization and the improvement in performance by using CMOS process. The authors designed and tested prototype microphone units, and performed comparisons on a basic performance with the conventional ECM.
Authors:
Arimura, Norihiro; Kimura, Norio; Ohga, Juro; Yasuno, Yoshinobu
Affiliation:
Shibaura Institute of Technology
AES Convention:
120 (May 2006)
Paper Number:
6636
Publication Date:
May 1, 2006
Subject:
Microphones
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.