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US 2014/0192998 A1Published application
Advanced speech encoding dual microphone configuration (dmc)
AssigneeAliphCom
InventorGregory C. Burnett
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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.
Claims1
A device comprising:
- a boom having two receptacles that define an axis;
- a first directional microphone, the first directional microphone having a first vector normal to a first front of the first directional microphone, the first vector approximately parallel with the axis, and a first of the two receptacles configured to receive and hold the first directional microphone;
- a second directional microphone positioned on the axis a first distance from the first directional micro, the second directional microphone having a second vector normal to a second front of the second directional microphone, and a second of the two receptacles configured to receive and hold the second directional microphone, wherein the second vector forms an angle relative to the first vector;
- a vent positioned in proximity to the first directional microphone, the second directional microphone, or both, the vent having a first diameter that is less than a diameter of the first and second directional microphones;
- and
- logic configured to determine whether the first directional microphone or the second directional microphone is closer to a source of speech.
3 more elements
Dependencies are inferred from the claim text.