ALEXANDRIA, Virginia, Oct. 8 -- INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, New York has been assigned a patent (No. US 12112767 B2, initially filed May 21, 2021) developed by three inventors Toru Nagano, Taito-Ku, Japan; Takashi Fukuda, Tokyo, Japan; and Masayuki Suzuki, Tokyo, Japan, for "Acoustic data augmentation with mixed normalization factors." . . .