ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,230, issued on March 31.
"Recognition or synthesis of human-uttered harmonic sounds" was invented by Boris Fridman-Mintz (Mexico City).
According to the abstract* released by the U.S. Patent & Trademark Office: "Within each harmonic spectrum of a sequence of spectra derived from analysis of a waveform representing human speech are identified two or more fundamental or harmonic components that have frequencies that are separated by integer multiples of a fundamental acoustic frequency. The highest harmonic frequency that is also greater than 410 Hz is a primary cap frequency, which is used to select a primary phonetic note that corresponds to a subset of phonetic chords from a se...