US 12,322,398 B2
Method and apparatus for determining weighting factor during stereo signal encoding
Eyal Shlomot, Long Beach, CA (US); Haiting Li, Beijing (CN); and Zexin Liu, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Feb. 2, 2024, as Appl. No. 18/430,694.
Application 18/430,694 is a continuation of application No. 18/065,043, filed on Dec. 13, 2022, granted, now 11,922,958.
Application 18/065,043 is a continuation of application No. 17/136,028, filed on Dec. 29, 2020, granted, now 11,551,701, issued on Jan. 10, 2023.
Application 17/136,028 is a continuation of application No. PCT/CN2019/093402, filed on Jun. 27, 2019.
Claims priority of application No. 201810713019.9 (CN), filed on Jun. 29, 2018.
Prior Publication US 2024/0274136 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/008 (2013.01); G10L 19/032 (2013.01)
CPC G10L 19/008 (2013.01) [G10L 19/032 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining a multi-channel signal including at least two channel signals;
obtaining a manner for obtaining a target line spectral frequency (LSF) parameter of the multi-channel signal, wherein the manner is either a first manner of obtaining the target LSF parameter by quantizing an original LSF parameter of the multi-channel signal or a second manner of obtaining the target LSF parameter by prediction;
obtaining, based on the manner for obtaining the target LSF and an energy spectrum of a linear prediction filter corresponding to the original LSF parameter, a weighting factor; and
obtaining, based on the weighting factor, a spectral distortion between the original LSF parameter and the target LSF parameter.