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

Claim 0:
1. An encoding method for audio signal comprising:
computing first feature information of an input audio signal inputting the input audio signal to a recurrent encoding model;
generating a first bitstream by quantizing the first feature information;
generating a first output signal from a quantized first feature information by inputting the quantized first feature information a recurrent decoding model;
calculating a residual signal by subtracting the first output signal from the input audio signal;
computing second feature information of the residual signal by inputting the residual signal to a nonrecurrent encoding model;
generating a second bitstream by quantizing the second feature information; and
outputting an overall bitstream by multiplexing the first bitstream and the second bitstream.