Patent ID: 11869517
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The one or more non-transitory computer-readable media according to claim 9, wherein the correcting the second downmixed signal in the current frame based on the downmix compensation factor of the current frame, to obtain the first downmixed signal in the current frame comprises:
calculating a compensated downmixed signal in the current frame based on a first frequency-domain signal in the current frame and the downmix compensation factor of the current frame, wherein the first frequency-domain signal is a left channel frequency-domain signal in the current frame or a right channel frequency-domain signal in the current frame; and calculating the first downmixed signal in the current frame based on the second downmixed signal in the current frame and the compensated downmixed signal in the current frame; or
calculating a compensated downmixed signal in a subframe i of the current frame based on a second frequency-domain signal in the subframe i of the current frame and a downmix compensation factor of the subframe i of the current frame, wherein the second frequency-domain signal is a left channel frequency-domain signal in the subframe i of the current frame or a right channel frequency-domain signal in the subframe i of the current frame; and calculating a first downmixed signal in the subframe i of the current frame based on a second downmixed signal in the subframe i of the current frame and the compensated downmixed signal in the subframe i of the current frame, wherein the current frame comprises P subframes, and the first downmixed signal in the current frame comprises the first downmixed signal in the subframe i of the current frame, wherein both P and i are integers, P≥2, and i∈[0, P−1].