Patent ID: 11863964
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The method according to claim 4, wherein modifying the high-band impulse responses corresponding to the first quantity of the M first HRTFs to obtain the first quantity of first target HRTFs comprises:
multiplying a first modification factor with a first high-band impulse response corresponding to the third HRTF to obtain a first target HRTF, wherein the first modification factor is greater than 0 and less than 1;
or
wherein modifying the high-band impulse responses corresponding to the first quantity of the M first HRTFs to obtain the first quantity of first target HRTFs comprises:
multiplying a first modification factor with a first high-band impulse response corresponding to the third HRTF to obtain a first temporal HRTF, wherein the first modification factor is a value greater than 0 and less than 1; and
multiplying a third modification factor with each impulse response corresponding to the first temporal HRTF to obtain a first target HRTF, wherein the third modification factor is greater than 1;
or
multiplying a first modification factor with a first high-band impulse response corresponding to the third HRTF to obtain a first temporal HRTF, wherein the first modification factor is greater than 0 and less than 1; and
multiplying a first value with each impulse response corresponding to the first temporal HRTF to obtain a first target HRTF, wherein the first value is a ratio of a first sum of squares to a second sum of squares, the first sum of squares is a sum of squares of all impulse responses corresponding to the third HRTF, and the second sum of squares is a sum of squares of all impulse responses corresponding to the first temporal HRTF.