SYSTEM AND APPARATUS FOR BOOMLESS-MICROPHONE CONSTRUCTION FOR WIRELESS HELMET COMMUNICATOR WITH SIREN SIGNAL DETECTION AND CLASSIFICATION CAPABILITY

摘要

Boomless-microphones are described for a wireless helmet communicator with siren signal detection and classification capabilities. An acoustic component receives an audio signal and comprises a left acoustic sensor and a right acoustic sensor. The left acoustic sensor is mountable or attachable to the surface of a left wall of a helmet and the right acoustic sensor is mountable or attachable to the surface of a right wall. A speaker component can generate an echoless audio signal via signal inversion of the audio signal, outputs to a left speaker mountable or attachable to a left ear area of the helmet and a right speaker mountable or attachable to a right ear area of the helmet. A signal enhancement component can increase an intensity of the first audio signal associated with an emergency siren based on a determined proximity of an emitting emergency vehicle or emergency object to the device.

主权项

1. A method, comprising:
capturing, by a device comprising a processor, sound wave data determined to originate from within a spatial region or sound data originating from an emergency vehicle siren by a left acoustic microphone associated with a left ear compartment of a headgear and a right acoustic microphone associated with a right ear compartment of the headgear; initiating, by the device, rendering of sound waves out of phase between a left speaker and a right speaker forming an acoustic echo cancelling region with respect to the left acoustic microphone, the right acoustic microphone and a user mouth; and filtering, by the device, environmental noise determined to originate outside the echo cancelling region.