ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,426, issued on Oct. 14, was assigned to DOLBY INTERNATIONAL AB (Dublin).

"Voice encoding and decoding using transform coefficients adjusted by spectral model and spectral shaper" was invented by Lars Villemoes (Jarfalla, Sweden), Janusz Klejsa (Solna, Sweden) and Per Hedelin (Gothenburg, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present document relates an audio encoding and decoding system (referred to as an audio codec system). In some embodiments, a method of audio signal encoding comprises: receiving an input audio signal; transforming a sequence of samples of the input audio signal into a block of transform coefficients, the tra...