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US 11,638,092 B2Granted
Advanced speech encoding dual microphone configuration (DMC)
AssigneeJawb Acquisition LLC
InventorGregory C. Burnett
Life of this patent
Estimating the term…
Abstract
A microphone array is described for use in ultra-high acoustical noise environments. The microphone array includes two directional close-talk microphones. The two microphones are separated by a short distance so that one microphone picks up more speech than the other. The microphone array can be used along with an adaptive noise removal program to remove a significant portion of noise from a speech signal of interest.
Claims20
A system, comprising:
- a headset;
- a processor included in the headset;
- a memory device included in the headset and coupled with the processor;
- a wireless transceiver included in the headset and coupled with the processor;
- a microphone array included in the headset, the microphone array including a plurality of microphones coupled with the processor;
- a plurality of receptacles positioned in the headset, the plurality of receptacles define an axis,
- a first microphone in the plurality of microphones having a first vector normal to a first front of the first microphone, the first vector approximately parallel with the axis, and a first receptacle of the plurality of receptacles is configured to receive and hold the first microphone,
- a second microphone in the plurality of microphones is positioned on the axis at a first distance from the first microphone, the second microphone having a second vector normal to a second front of the second microphone, and the second of the of the plurality of the receptacles is configured to receive and hold the second microphone, wherein the second vector forms an angle relative to the first vector, and
- a vent positioned in proximity to one or more of the plurality of microphones, the vent having a first diameter that is less than a diameter of one or more of the plurality of microphones;
- logic configured to determine whether the first microphone or the second microphone are closer to a speech source;
- and
- an adaptive noise removal application that receives acoustic signals from the first microphone and the second microphone and generates a denoised acoustic output signal.
9 more elements
A device, comprising:
- an earpiece including
- a processing system,
- a wireless transceiver coupled with the processing system,
- a microphone array including a plurality of microphones coupled with the processing system,
- a plurality of receptacles positioned in the earpiece, the plurality of receptacles define an axis,
- a first microphone in the plurality of microphones having a first vector normal to a first front of the first microphone, the first vector approximately parallel with the axis, and a first receptacle of the plurality of receptacles is configured to receive and hold the first microphone,
- a second microphone in the plurality of microphones is positioned on the axis at a first distance form the first microphone, the second microphone having a second vector normal to a second front of the second microphone, and a second of the of the plurality of receptacles is configured to receive and hold the second microphone, wherein the second vector forms an angle relative to the first vector, and
- a vent positioned in proximity to one or more of the plurality of microphones, the vent having a first diameter that is less than a diameter of one or more of the plurality of microphones.
5 more elements
Dependencies are inferred from the claim text.