Patent ID: 11961526
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 3:
4. The method according to claim 1, wherein the inter-frame amplitude fluctuation parameter represents a ratio of a sum of an amplitude sum of the first downmixed signal and an amplitude sum of the first residual signal of the second target frame to a sum of an amplitude sum of the second downmixed signal and an amplitude sum of the second residual signal, or the inter-frame amplitude fluctuation parameter represents a difference between a sum of an amplitude sum of the first downmixed signal and an amplitude sum of the first residual signal and a sum of an amplitude sum of the second downmixed signal and an amplitude sum of the second residual signal;
the inter-frame amplitude fluctuation parameter represents a difference between a logarithm of a sum of an amplitude sum of the first downmixed signal and an amplitude sum of the first residual signal and a logarithm of a sum of an amplitude sum of the second downmixed signal and an amplitude sum of the second residual signal;
the inter-frame amplitude fluctuation parameter represents a ratio of an amplitude sum of the first downmixed signal to an amplitude sum of the second downmixed signal, or the inter-frame amplitude fluctuation parameter represents a difference between an amplitude sum of the first downmixed signal and an amplitude sum of the second downmixed signal;
the inter-frame amplitude fluctuation parameter represents a difference between a logarithm of an amplitude sum of the first downmixed signal and a logarithm of an amplitude sum of the second downmixed signal;
the inter-frame amplitude fluctuation parameter represents a ratio of an amplitude sum of the first residual signal to an amplitude sum of the second residual signal, or the inter-frame amplitude fluctuation parameter represents a difference between an amplitude sum of the first residual signal and an amplitude sum of the second residual signal; or
the inter-frame amplitude fluctuation parameter represents a difference between a logarithm of an amplitude sum of the first residual signal and a logarithm of an amplitude sum of the second residual signal.