Title :
A Singular Advance in Conversion of Acoustic Signals to Electrical Form: The Electret Microphone [DSP History]
Author :
Flanagan, James L.
Author_Institution :
Rutgers Univ., Piscataway, NJ, USA
Abstract :
This column is from a symposium in tribute to Gerhard Sessler and James West on the occasion of their receiving medals of the Franklin Institute, Philadelphia, 29 April 2010. I would like to talk about one person´s perception of how the practical electret microphone was created and how it became established. Today, we use them as a commodity, and they appear in nearly every device that requires changing aerial acoustic waves into electrical form. The initial incentive was telephony.
Keywords :
acoustic signal processing; acoustic waves; electrets; microphones; Franklin Institute; acoustic-electrical signal conversion; aerial acoustic waves; electret microphone; Acoustic beams; Arrays; Carbon; Dielectrics; Electrets; Laboratories; Microphones;
Journal_Title :
Signal Processing Magazine, IEEE
DOI :
10.1109/MSP.2010.937499