Patent ID: 11862183
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. A decoding method for audio signal comprising:
reconstructing quantized first feature information of an input audio signal and quantized second feature information of a residual signal of the input audio signal, by demultiplexing and dequantizing an overall bitstream received from an encoder;
generating a first output signal from the quantized first feature information by inputting the quantized first feature information to a recurrent decoding model;
generating a second output signal from the quantized second feature information by inputting the quantized second feature information to a nonrecurrent decoding model; and
reconstructing the input audio signal by combining the first output signal and the second output signal,
wherein the residual signal is computed by subtracting the output signal computed using the nonrecurrent decoding model from the input audio signal.