CPC G10L 19/02 (2013.01) [G06N 3/045 (2023.01); G10L 25/21 (2013.01); G10L 25/30 (2013.01)] | 6 Claims |
1. A method of encoding an audio signal using side information, the method comprising:
identifying an input signal, the input signal being an original audio signal;
extracting side information from the input signal using a learning model trained to extract side information from a feature vector of the input signal;
encoding the input signal; and
generating a bitstream by combining the encoded input signal and the side information,
wherein the side information comprises information on energy of a low-band signal with a frequency less than or equal to a criterion, in the input signal.
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