-
公开(公告)号：US20240177722A1
公开(公告)日：2024-05-30
申请号：US18524654
申请日：2023-11-30
CPC分类号： G10L19/03 , G10L19/12 , G10L19/26 , G10L19/265 , G10L21/038 , G10L2019/0016 , G10L19/0204
摘要： An encoding method includes dividing a to-be-encoded time-domain signal into a low band signal and a high band signal, performing encoding on the low band signal to obtain a low frequency encoding parameter, performing encoding on the high band signal to obtain a high frequency encoding parameter, obtaining a synthesized high band signal, performing short-time post-filtering processing on the synthesized high band signal to obtain a short-time filtering signal, and calculating a high frequency gain based on the high band signal and the short-time filtering signal.
-
公开(公告)号：US20240046938A1
公开(公告)日：2024-02-08
申请号：US18489875
申请日：2023-10-19
发明人： Zexin Liu , Fengyan Qi , Lei Miao
IPC分类号： G10L19/002 , G10L19/028 , G10L19/02 , G10L19/005
CPC分类号： G10L19/002 , G10L19/028 , G10L19/0204 , G10L19/005
摘要： In a method to decode signals, a computing device decodes spectral coefficients of a current frame are grouped into a plurality of sub-bands. The computing device classifies a sub-band as a bit allocation unsaturated sub-band based on an average quantity of allocated bits per spectral coefficient of a sub-band of the plurality of sub-bands and a threshold. The computing device obtains a noise filling gain based on an envelope of the sub-band, and obtains a reconstructed spectral coefficient of the sub-band by performing noise filling based on the noise filling gain. The computing device then obtains a frequency domain audio signal based on spectral coefficients in the sub-band obtained by decoding and the reconstructed spectral coefficient.
-
公开(公告)号：US11756557B2
公开(公告)日：2023-09-12
申请号：US17536932
申请日：2021-11-29
发明人： Halting Li , Zexin Liu , Xingtao Zhang , Lei Miao
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： A method for encoding an audio signal includes obtaining an ITD value of a current frame of an audio signal; obtaining a characteristic parameter of the current frame, wherein the characteristic parameter comprises at least one of a signal-to-noise ratio of the current frame or a peak feature of cross correlation coefficients of the current frame; determining, based on the characteristic parameter, whether to use the initial ITD value as the finalized ITD value of the current frame; and encoding the current frame based on the finalized ITD value of the current frame, wherein if the initial ITD value is determined as not used as the finalized ITD value of the current frame, the finalized ITD value of the current frame is the same as a finalized ITD value of a previous frame of the current frame.
-
公开(公告)号：US11741980B2
公开(公告)日：2023-08-29
申请号：US17232807
申请日：2021-04-16
发明人： Fengyan Qi , Lei Miao
IPC分类号： G10L21/013 , G10L25/00 , G10L19/00 , G10L21/028 , G10L25/90
CPC分类号： G10L21/013 , G10L19/00 , G10L21/028 , G10L25/00 , G10L25/90
摘要： A method and an apparatus for detecting correctness of a pitch period, where the method for detecting correctness of a pitch period includes determining, according to an initial pitch period of an input signal in a time domain, a pitch frequency bin of the input signal, where the initial pitch period is obtained by performing open-loop detection on the input signal, determining, based on an amplitude spectrum of the input signal in a frequency domain, a pitch period correctness decision parameter, associated with the pitch frequency bin, of the input signal, and determining correctness of the initial pitch period according to the pitch period correctness decision parameter.
-
公开(公告)号：US20230077905A1
公开(公告)日：2023-03-16
申请号：US17983724
申请日：2022-11-09
发明人： Bin Wang , Haiting Li , Lei Miao
IPC分类号： G10L19/008 , G10L19/032
摘要： In a stereo encoding method, a channel combination encoding solution of a current frame is first obtained, and then a quantized channel combination ratio factor of the current frame and an encoding index of the quantized channel combination ratio factor are obtained based on the obtained channel combination encoding solution, so that an obtained primary channel signal and secondary channel signal of the current frame meet a characteristic of the current frame.
-
公开(公告)号：US20220366922A1
公开(公告)日：2022-11-17
申请号：US17868879
申请日：2022-07-20
IPC分类号： G10L19/03 , G10L19/26 , G10L21/038 , G10L19/12
摘要： An encoding method includes dividing a to-be-encoded time-domain signal into a low band signal and a high band signal, performing encoding on the low band signal to obtain a low frequency encoding parameter, performing encoding on the high band signal to obtain a high frequency encoding parameter, obtaining a synthesized high band signal, performing short-time post-filtering processing on the synthesized high band signal to obtain a short-time filtering signal, and calculating a high frequency gain based on the high band signal and the short-time filtering signal.
-
公开(公告)号：US20220328053A1
公开(公告)日：2022-10-13
申请号：US17842284
申请日：2022-06-16
发明人： Xingtao Zhang , Haiting Li , Zexin Liu , Lei Miao
IPC分类号： G10L19/008
摘要： An inter-channel phase difference (IPD) parameter extraction method includes obtaining a parameter for obtaining an information extraction manner for a current frame of a multi-channel signal; obtaining an IPD parameter extraction manner for the current frame based on the parameter for obtaining the information extraction manner, where the obtained IPD parameter extraction manner is one of at least two preset IPD parameter extraction manners; and obtaining an IPD parameter of the current frame based on the obtained IPD parameter extraction manner for the current frame.
-
公开(公告)号：US20220180485A1
公开(公告)日：2022-06-09
申请号：US17680946
申请日：2022-02-25
发明人： Yukuai Chen , Shuai Chen , Zhiping Jia , Lei Miao
摘要： An image processing method includes analyzing a first image including a face image in a plurality of directions, including recognizing photographing background information of the first image and brightness information and makeup information that are of a face, so that skin beautification processing can be purposefully performed on the face image comprehensively based on specific background information of the image, actual brightness distribution of the face, and actual makeup of the face.
-
公开(公告)号：US11200907B2
公开(公告)日：2021-12-14
申请号：US16682484
申请日：2019-11-13
发明人： Eyal Shlomot , Haiting Li , Lei Miao
IPC分类号： G10L19/008 , H04S1/00
摘要： A stereo signal processing method and apparatus, where the method includes performing delay estimation on a stereo signal of a current frame to determine an inter-channel time difference of the current frame, identifying a sign of the inter-channel time difference of the current frame is different from a sign of an inter-channel time difference of a previous frame of the current frame, performing delay alignment processing on the first-channel signal of the current frame based on the inter-channel time difference of the current frame, and performing delay alignment processing on the second-channel signal of the current frame based on the inter-channel time difference of the previous frame.
-
公开(公告)号：US20210383815A1
公开(公告)日：2021-12-09
申请号：US17408116
申请日：2021-08-20
发明人： Zexin Liu , Xingtao Zhang , Haiting Li , Lei Miao
IPC分类号： G10L19/008 , G10L19/022
摘要： A multi-channel signal encoding method includes obtaining a multi-channel signal of a current frame; determining an initial multi-channel parameter of the current frame; determining a difference parameter based on the initial multi-channel parameter of the current frame and multi-channel parameters of previous K frames of the current frame, where the difference parameter represents a difference between the initial multi-channel parameter of the current frame and the multi-channel parameters of the previous K frames, and K is an integer greater than or equal to one; determining a multi-channel parameter of the current frame based on the difference parameter and a characteristic parameter of the current frame; and encoding the multi-channel signal based on the multi-channel parameter of the current frame.
-
-
-
-
-
-
-
-
-
搜索结果
290 条记录 (耗时 0.031 秒)
