MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202618070591 A) filed by Telefonaktiebolaget Lm Ericsson Publ on June 05, 2026, for Spectrum Classifier For Audio Coding Mode Selection.
Inventors include Kinuthia, Charles; and Norvell, Erik.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: A method in an encoder to determine which of two encoding modes or groups of encoding modes to use is provided. The method includes deriving (1001) a frequency spectrum of an input audio signal. The method includes obtaining (1003) a magnitude of a critical frequency region of the frequency spectrum. The method includes obtaining (1005) a peakyness measure of the frame. The method includes obtaining (1007) a noise band detection measure. The method includes determining (1009) which one of the two encoding modes or groups of encoding modes to use based on at least the peakyness measure and the noise band detection measure. The method includes encoding (1011) the input audio signal based on the encoding mode determined to use.
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