The principle of electretcondensermicrophone and its noise are analyzed in the paper. It will be helpful to improve the electric specification.
本文对驻极体电容传声器的原理及噪声作了分析，这将有助于提高它的电特性。
2
Theoretical evaluation and simulation experiments show that the improved BP neural network can effectively detect the image feature of electretcondensermicrophone.
理论分析和实验均表明该算法能实时有效地检测出驻极体麦克图像的特性。
3
The ASTATIC 901 is a superior low noise, electretcondenser cardioid surface mounted boundary microphone.