Headset noise reducing

Abstract

A headset has an earcup with front opening adjacent to an annular cushion formed with a plurality of openings facing the inside of the earcup that acoustically couples the earcup volume to the cushion volume. A driver is seated inside the earcup with a microphone adjacent to the driver. Active noise reducing circuitry intercouples the driver and microphone. An acoustic load that may comprise a wire mesh resistive cover and/or air mass adjacent the microphone is constructed and arranged to reduce the effect of resonances in the earcup volume.

What is claimed is: 
     
       1. A headset comprising,
 an earcup having a front opening adapted to be adjacent to the ear of the user,   a driver inside said earcup,   a cushion around the periphery of said front opening formed with an ear opening constructed and arranged to accommodate the ear of a user and formed with a plurality of openings around said opening constructed and arranged to acoustically add the volume of said cushion to the volume of said earcup and enhance passive attenuation.   
     
     
       2. A headset in accordance with  claim 1  and further comprising,
 a microphone inside said earcup adjacent to said driver, and 
 active noise reducing circuitry intercoupling said microphone and said driver constructed and arranged to provide active noise reduction,
 whereby said cushion with said plurality of openings is further constructed and arranged to furnish additional damping to help smooth the audio response at the ear of a user and control stability with the headset off the head. 
 
 
     
     
       3. A headset in accordance with  claim 2  and further comprising,
 an acoustic load in close proximity to said microphone constructed and arranged to reduce the effects of resonances in said earcup. 
 
     
     
       4. A headset in accordance with  claim 3  wherein said acoustic load comprises a wire mesh resistive cover. 
     
     
       5. A headset in accordance with  claim 4  wherein said wire mesh resistive cover is formed with an opening near said microphone. 
     
     
       6. A headset in accordance with  claim 4  wherein said wire mesh resistive cover coacts with said driver to substantially enclose said microphone. 
     
     
       7. A headset comprising,
 an earcup having a front opening adapted to be adjacent to the ear of the user,   a driver inside said earcup, a microphone inside said earcup adjacent to said driver,   active noise reducing circuitry intercoupling said microphone and said driver constructed and arranged to provide active noise reduction, and   a resistive wire cover positioned over said driver and said microphone coacting with said driver to substantially enclose said microphone,   said resistive cover and said driver defining a volume with enclosed air and said microphone there between,   said enclosed air and said resistive cover forming an acoustic load, said acoustic load reducing the effects of resonances in the earcup, and   further comprising a mass port and a resistive port extending through a closed end of the earcup.   
     
     
       8. The headset in accordance with claim 7 further comprising a resistive port wire mesh covering an external opening of the resistive port.