Computer microphone powered by internal battery or computer hardware

A computer microphone circuit for coupling to a computer comprising:

• means for generating an electrical signal, wherein said means for generating an electrical signal accepts a sound wave as an input and generates an electrical signal as an output;
• first means for supplying a first voltage to said means for generating an electrical signal, said first voltage being at the output of a first diode in series with an internal power source;
• and
• second means for supplying a second voltage to said means for generating an electrical signal, said second voltage being at the output of a second diode in series with an external power source, said second voltage being greater than said first voltage, wherein when the application of power from said external power source is supplied to the computer microphone circuit, the application of power from said internal power source is terminated and, wherein when the application of power from said external power source is terminated, the application of power from said internal power source is re-initiated.