METHOD FOR DYNAMICALLY ADJUSTING THE SPECTRAL CONTENT OF AN AUDIO SIGNAL

Patent №

US 7,899,192

Granted

2011-03-01

Filed 2007

Owner

IROQUOIS HOLDING COMPANY

Lab

AI components

2

speech · planning

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

11708452

A method for dynamically adjusting the spectral content of an audio signal, which increases the harmonic content of said audio signal, said method comprising translating an encoded digital signal into data bands, creating a psychoacoustic model to identify sections of said data bands that are deficient in harmonic quality, analyzing the fundamental frequency and amplitude of said harmonically deficient data bands, creating additional higher order harmonics for said harmonically deficient data bands, adding said higher order harmonics back to said encoded digital signal to form a newly enhanced signal, inverse filtering said newly enhanced signal, and converting said inverse filtered signal to an analog waveform for consumption by the listener.

SpeechPlanningH03G 5/16G10L 21/038H04R 5/04

AI classification

Speech1.00
Planning0.75
Vision0.19
Natural language0.03
Knowledge representation0.01
Machine learning0.00
Evolutionary computation0.00
AI hardware0.00

Ownership

IROQUOIS HOLDING COMPANY

assignment · 190200751

Assignors

OXFORD, J. CRAIG, SHIELDS, D. MICHAEL, TAYLOR, PATRICK

On an employer assignment, the assignors are typically the inventors.

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