-
A computer microphone does not operate much differently than a standard stage microphone, although the power of a microphone for a personal computer is much reduced from those that are used in concert halls, churches and in public speaking venues.
Any microphone must have a way to amplify the voice. A microphone amplifies the sound of the voice speaking into the device. A person speaks into a PC microphone, and the wires send data to the sound card.
A computer's sound card does all the audio processing for a PC microphone. (The software element is the major difference between PC microphone operation and regular audio microphone operation.) -
One major difference is that a PC microphone must draw its power directly from the PC. A PC microphone has an additional wire that a regular microphone does not. This additional wire allows the device to draw power directly from the computer.
Very little processing is done within the PC microphone. The driver for the computer's sound card handles the necessary processing of the audio information. - The driver software for the sound card handles the processing of electronic signals back into audible noise. The processed signals from the microphone are sent from the sound card to the speakers.
