If you ever wondered why a bias voltage can cause distortion in a dynamic microphone element, just consider what happens when you connect a DC source to a speaker. The voice coil move in one direction depending on the polarity. Now think of a dynamic mic element doing the same thing. After all, electrically, the element and speaker are essentially the same. The DC bias causes the mic element's static condition to be physically moved from its normal resting position, so the output waveform will not be an accurate electrical representation of the audio wavefront arriving at the element.
73, Charlie k3ICH ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
