Have you ever wanted to be a tap dancer? I hadn’t thought about it much until I saw Michael Flatley and his team in River Dance. It is literally poetry in motion. As I watched the show I could feel the Irish branch of my family tree swaying to the music.
Some of you may recall that I am a bit of a thespian. I have been in over 65 shows including 6 musicals. Though I have done a little tripping over the floor boards, I haven’t ever done any tap. However, I have seen how they mike tap performances. They use a device known as a PZM or pressure zone microphone. This type of mike has a design that limits how much sound is generated by vibration or movement of the microphone assembly itself. There is a small pressure zone sensor that can pick up sounds that are carried from other directions than the mounting structure.
In a condenser microphone element if the increasing sound pressure increases the capacitance, what kind of voltage change is observed on the microphone element as a high pressure wave passes?
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1 comment:
Dancing to the tune of an Irish jig I pondered the follow poser. In a condenser microphone element if the increasing sound pressure increases the capacitance, what kind of voltage change is observed on the microphone element as a high pressure wave passes?
Whether you are a tap dancer or not everyone knows that the equation for the voltage on a capacitor is Vc = q/C. From the equation it is obvious that as C increases Vc must go lower, for a constant q. But I bet you already knew that.
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