View Single Post
  #5   Report Post  
Old March 2nd 07, 07:54 PM posted to rec.radio.amateur.homebrew
[email protected] LenAnderson@ieee.org is offline
external usenet poster
 
First recorded activity by RadioBanter: Aug 2006
Posts: 1,027
Default Electret Condenser Mic Question

On Mar 2, 6:04?am, "Telstar Electronics"
wrote:
On Feb 26, 5:03 am, "Spin" wrote:

I have a headset electret condenser mic that has a low frequency response.
Other than changing the element is there a means of getting a higher
frequency response?


It's most likely not the mic causing that issue. Most condenser mics
have a great freq response. You should look at the circuit and zero in
on any RC filtering that may be taking place... giving you that
"bassy" sound.

www.telstar-electronics.com


Quite true on wideband audio response and the necessary
amplification that must follow it.

Working around stray RF fields can cause other problems
around electret microphones. They are inherently high-
impedance so one has to pay attention to the VLF and up
stray RF because of that high impedance...especially if
using newer op-amps or other active devices having high
frequency amplification. It is a compromise in design:
attenuate the VLF and above response but hold the
microphone amplifier response flat out to at least 10 KHz.