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

Claim 6:
7. The method according to claim 6, wherein modifying the high-band impulse responses corresponding to the second quantity of the M second HRTFs to obtain the second quantity of second target HRTFs comprises:
multiplying a second modification factor with a second high-band impulse response corresponding to the fourth HRTF to obtain a second target HRTF, wherein the second modification factor is greater than 0 and less than 1;
or
wherein modifying the high-band impulse responses corresponding to the second quantity of the M second HRTFs to obtain the second quantity of second target HRTFs comprises:
multiplying a second modification factor with a second high-band impulse response corresponding to the fourth HRTF to obtain a second temporal HRTF, wherein the second modification factor is greater than 0 and less than 1; and
multiplying a fourth modification factor with each impulse response corresponding to the second temporal HRTF to obtain a second target HRTF, wherein the fourth modification factor is greater than 1;
or
multiplying a second modification factor with a second high-band impulse response corresponding to the fourth HRTF to obtain a second temporal HRTF, wherein the second modification factor is greater than 0 and less than 1; and
multiplying a second value with all impulse responses corresponding to the second temporal HRTF to obtain a sixth target HRTF, wherein the second value is a ratio of a third sum of squares to a fourth sum of squares, the third sum of squares is a sum of squares of all impulse responses corresponding to the fourth HRTF, and the fourth sum of squares is a sum of squares of all impulse responses corresponding to the second temporal HRTF.