US Patent Issued to Eventide on July 21 for "Filterbank pitchshifter" (Canadian, American Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,866, issued on July 21, was assigned to Eventide Inc. (Little Ferry, N.J.).

"Filterbank pitchshifter" was invented by Corey Kereliuk (Kingston, Canada), Woodrow Q. Herman (New York) and Russell Wedelich (Nyack, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Technique and mechanism for processing polyphonic audio signals. Processing includes filtering the audio signals to generate a set of narrow band signals, estimating an instantaneous magnitude and frequency associated with the narrow band signals and driving a bank of sinusoidal oscillators based on the instantaneous magnitude and frequency to create an output audio signal."

The patent was ...