A wireless microphone having a split-band audio frequency...

Details A wireless microphone having a split-band audio frequency... A wireless microphone having a split-band audio frequency...

H - Electricity

04

R

H04R 3/00 (2006.01) H03G 9/02 (2006.01) G10L 21/02 (2006.01) H04H 1/00 (2006.01)

Patent

CA 2360970

A wireless microphone having a split-band audio frequency companding system is disclosed. The companding system includes a compression circuit in which one amplification element is utilized in connection with a number of frequency bands. Each frequency band has a rectifier and filter element associated therewith. High-pass filter elements are utilized in the higher frequency bands of the compression and expander circuits to reduce the transfer of low-frequency signals to the rectifier elements that process the low-frequency signals, thereby reducing undesirable modulations of a variable resistance element associated therewith.

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