Method and apparatus for reducing the effect of environmental noise on listeners

A method and apparatus for enhancing a desired audio signal for delivery through an electroacoustic channel include obtaining a noise estimate attributable to an external disturbance, applying the noise estimate to a dynamic noise compensation (DNC) process to thereby condition the desired audio sig...

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Bibliographic Details
Main Authors SEEFELDT ALAN J, FIELDER LOUIS D, DAVIDSON GRANT A, FELLERS MATTHEW C, CROCKETT BRETT G
Format Patent
LanguageEnglish
Published 15.09.2015
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
BANDAGES, DRESSINGS OR ABSORBENT PADS
BASIC ELECTRONIC CIRCUITRY
DEAF-AID SETS
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
GENERATION OF NOISE BY SUCH CIRCUITS
GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER
HUMAN NECESSITIES
HYGIENE
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
MEDICAL OR VETERINARY SCIENCE
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PHYSICS
PROSTHESES
PUBLIC ADDRESS SYSTEMS
SOUND-PRODUCING DEVICES
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:A method and apparatus for enhancing a desired audio signal for delivery through an electroacoustic channel include obtaining a noise estimate attributable to an external disturbance, applying the noise estimate to a dynamic noise compensation (DNC) process to thereby condition the desired audio signal as a function of the spectral characteristics of the noise estimate, applying the noise estimate to an adaptive equalization (AEQ) process to thereby condition the desired audio signal as a function of the electroacoustic response of the electroacoustic channel, and applying the noise estimate to an active noise cancellation (ANC) process configured to generate anti-noise for delivery into the electroacoustic channel.
Bibliography:Application Number: US201113703844