Abstract
An upgraded version of a previously described acoustic isolation vessel [K. C. T. Ngo and A. J. Zuckerwar, J. Acoust. Soc. Am. 93, 2974–2980 (1993)] has been used to investigate the background noise in piezoresistive and electret condenser microphones over the frequency range 1 Hz–100 kHz. The test microphones represent four different manufacturers. Theoretical models for predicting the noise characteristics of piezoresistive (nonreciprocal) and electret condenser (reciprocal) microphones are proposed. In particular, the results of 1/f noise measurements on these microphones are compared with those previously obtained from air condenser microphones.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
