Patent ID: 11922954
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A computer program product comprising computer-executable instructions for storage on a non-transitory computer-readable medium that, when executed by one or more processors of an encoder, cause the one or more processors to:
mix Nth-frame audio signals on two of a plurality of channels based on a predetermined first algorithm to obtain an Nth-frame downmixed signal, wherein N is a positive integer greater than zero;
detect whether the Nth-frame downmixed signal comprises a speech signal; and
when no speech signal is detected, encode the Nth-frame downmixed signal into a bitstream when the Nth-frame downmixed signal satisfies a preset audio frame encoding condition.