POST PROCESSOR, PREPROCESSOR, AUDIO ENCODER, AUDIO DECODER AND CORRESPONDING METHODS FOR IMPROVING TRANSIT PROCESSING Russian patent published in 2019 - IPC H03G3/00 

FIELD: data processing.

SUBSTANCE: invention relates to audio data processing techniques. Audio data post processor for audio signal postprocessing, having time-variable gain information at high frequencies as auxiliary information, comprises module for extracting strips to extract a high-frequency band from audio signal and a low-frequency band from audio signal; high-frequency band processor for performing time-variable gain of the high-frequency band in accordance with the time-variable gain information at high frequencies to obtain a processed high-frequency band; combination module for combining the processed high-frequency band and the low-frequency band.

EFFECT: high efficiency of audio data processing.

64 cl, 17 dwg