公开(公告)号：US09161038B2

公开(公告)日：2015-10-13

申请号：US14057646

申请日：2013-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zexin Liu ,  Lei Miao ,  Anisse Taleb

IPC: G10L19/032 ,  H04N19/60 ,  G10L21/038 ,  G10L19/025 ,  G10L19/20

CPC classification number: G10L19/032 ,  G10L19/025 ,  G10L19/20 ,  G10L21/038 ,  G10L25/18 ,  H04N19/60

Abstract: A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal class of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal class information of the high frequency signal of the current frame.

Abstract translation: 提供了一种编码高频信号的方法和装置，以及用于解码高频信号的方法和装置，其涉及编码和解码技术。 编码高频信号的方法包括：确定当前帧的高频信号的信号类; 平滑和缩放当前帧的高频信号的时间包络并获得当前帧的高频信号需要被编码的时间包络，如果当前帧的高频信号是非瞬态信号，并且 前一帧的高频信号是瞬态信号; 对需要编码的当前帧的高频信号的时间包进行量化和编码，以及当前帧的高频信号的频率信息和信号类信息。

公开(公告)号：US20140257824A1

公开(公告)日：2014-09-11

申请号：US14285976

申请日：2014-05-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse Taleb ,  Jianfeng Xu ,  David Virette

IPC: G10L19/00

CPC classification number: G10L19/00 ,  G10L19/025 ,  G10L19/20

Abstract: An apparatus and a method for encoding an input signal applied to the apparatus comprising: a transient detector adapted to detect whether the applied input signal comprises a transient; at least two transient signal encoders adapted to encode the applied input signal if a transient is detected by the transient detector; and a selection unit adapted to select a transient signal encoder among the transient signal encoders according to at least one predetermined selection criterion.

Abstract translation: 一种用于编码施加到该装置的输入信号的装置和方法，包括：瞬态检测器，适于检测所施加的输入信号是否包括瞬态; 至少两个瞬态信号编码器，其适于在瞬态检测器检测到瞬态时对所施加的输入信号进行编码; 以及选择单元，其适于根据至少一个预定选择标准在所述瞬态信号编码器中选择瞬态信号编码器。

公开(公告)号：US20170075860A1

公开(公告)日：2017-03-16

申请号：US15345074

申请日：2016-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Deming Zhang ,  Haiting Li ,  Anisse Taleb ,  Jianfeng Xu

IPC: G06F17/14

CPC classification number: G06F17/142 ,  G06F17/141 ,  G06F17/147 ,  G10L19/0212 ,  G10L19/022

Abstract: An embodiment of the present invention discloses a data processing method, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric rotate factor, where the rotate factor is a·W4L2p+1, p=0, . . . , L/2−1, and a is a constant; performing a Fast Fourier (Fast Fourier Transform, FFT) transform of L/2 point on the pre-rotated data, where L is the length of the input data; post-rotating the data that has undergone the FFT transform by using a symmetric rotate factor, where the rotate factor is b·W4L2q+1, q=0, . . . , L/2−1, and b is a constant; and obtaining output data.

Abstract translation: 本发明的一个实施例公开了一种数据处理方法，包括：对输入数据进行加密，以获得二进制数据; 通过使用对称的旋转因子来预先旋转二进制数据，其中旋转因子为·W4L2p + 1，p = 0。 。 。 ，L / 2-1，a为常数; 在预旋转数据上执行L / 2点的快速傅里叶（Fast Fourier Transform，FFT）变换，其中L是输入数据的长度; 通过使用旋转因数为b·W4L2q + 1，q = 0的对称旋转因子对经过FFT变换的数据进行后转。 。 。 ，L / 2-1，b为常数; 并获得输出数据。

公开(公告)号：US20140142931A1

公开(公告)日：2014-05-22

申请号：US14136130

申请日：2013-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengyan Qi ,  Lei Miao ,  Anisse Taleb

IPC: G10L19/02

CPC classification number: G10L19/02 ,  G10L25/90

Abstract: The present invention discloses a pitch detection method and apparatus, which belong to the field of speech and audio. The pitch detection method includes: performing pitch detection on a speech signal in a time domain to obtain an initial pitch period; converting the speech signal to a frequency domain to obtain a frequency spectrum of the speech signal, where the frequency spectrum includes a magnitude spectrum of the frequency spectrum; extracting a feature parameter according to the initial pitch period and the frequency spectrum of the speech signal; and performing fine pitch period detection according to the initial pitch period and the feature parameter to obtain a fine pitch period.

Abstract translation: 本发明公开了一种属于语音领域的音调检测方法和装置。 音调检测方法包括：对时域中的语音信号执行音调检测以获得初始音调周期; 将语音信号转换为频域以获得语音信号的频谱，其中频谱包括频谱的幅度谱; 根据初始音调周期和语音信号的频谱提取特征参数; 并且根据初始音调周期和特征参数执行精细音调周期检测以获得精细音调周期。

公开(公告)号：US20140140516A1

公开(公告)日：2014-05-22

申请号：US14144874

申请日：2013-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse Taleb ,  David Virette ,  Liyun Pang ,  Yue Lang

IPC: G10L19/008

CPC classification number: G10L19/008 ,  G10L19/167 ,  G10L21/04 ,  G10L21/055

Abstract: The invention relates to a method for processing a multi-channel audio signal which carries a plurality of audio channel signals. The method comprises determining a time-scaling position using the plurality of audio channel signals and time-scaling each audio channel signal of the plurality of audio channel signals according to the time-scaling position to obtain a plurality of time scaled audio channel signals.

Abstract translation: 本发明涉及一种用于处理携带多个音频信道信号的多声道音频信号的方法。 该方法包括使用多个音频信道信号确定时间缩放位置，并根据时间缩放位置对多个音频信道信号的每个音频信道信号进行时间缩放，以获得多个时间缩放的音频信道信号。

公开(公告)号：US20140044192A1

公开(公告)日：2014-02-13

申请号：US14057646

申请日：2013-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zexin Liu ,  Lei Miao ,  Anisse Taleb

IPC: H04N7/30

CPC classification number: G10L19/032 ,  G10L19/025 ,  G10L19/20 ,  G10L21/038 ,  G10L25/18 ,  H04N19/60

Abstract: A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal class of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal class information of the high frequency signal of the current frame.

Abstract translation: 提供了一种编码高频信号的方法和装置，以及用于解码高频信号的方法和装置，其涉及编码和解码技术。 编码高频信号的方法包括：确定当前帧的高频信号的信号类; 平滑和缩放当前帧的高频信号的时间包络并获得当前帧的高频信号需要被编码的时间包络，如果当前帧的高频信号是非瞬态信号，并且 前一帧的高频信号是瞬态信号; 对需要编码的当前帧的高频信号的时间包进行量化和编码，以及当前帧的高频信号的频率信息和信号类信息。

公开(公告)号：US10366697B2

公开(公告)日：2019-07-30

申请号：US15651994

申请日：2017-07-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zexin Liu ,  Lei Miao ,  Anisse Taleb

IPC: G10L19/032 ,  G10L21/038 ,  G10L19/20 ,  H04N19/60 ,  G10L25/18 ,  G10L19/025

Abstract: A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal type of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal type information of the high frequency signal of the current frame.

公开(公告)号：US09996503B2

公开(公告)日：2018-06-12

申请号：US15696091

申请日：2017-09-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Deming Zhang ,  Haiting Li ,  Anisse Taleb ,  Jianfeng Xu

IPC: G06F17/14 ,  G10L19/022 ,  G10L19/02

CPC classification number: G06F17/142 ,  G06F17/141 ,  G06F17/147 ,  G10L19/0212 ,  G10L19/022

Abstract: A method for processing an audio signal, including: sound is converted to an analog audio input signal and converted into a digital audio signal; a windowed time domain signal is obtained and then a twiddled signal is obtained; the twiddled signal is pre-rotated and then an FFT is performed; an in-place fixed rotate compensation is performed on the FFT signal and then an post-rotated is performed; a quantized signal is obtained and then wrote into a bitstream for transmitting or storing.

公开(公告)号：US20170316789A1

公开(公告)日：2017-11-02

申请号：US15651994

申请日：2017-07-17

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Zexin Liu ,  Lei Miao ,  Anisse Taleb

IPC: G10L19/032 ,  H04N19/60 ,  G10L19/20 ,  G10L25/18 ,  G10L21/038 ,  G10L19/025

CPC classification number: G10L19/032 ,  G10L19/025 ,  G10L19/20 ,  G10L21/038 ,  G10L25/18 ,  H04N19/60

Abstract: A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal type of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal type information of the high frequency signal of the current frame.

公开(公告)号：US09728197B2

公开(公告)日：2017-08-08

申请号：US14879388

申请日：2015-10-09

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Zexin Liu ,  Lei Miao ,  Anisse Taleb

IPC: G10L19/032 ,  G10L21/038 ,  G10L19/20 ,  H04N19/60 ,  G10L25/18 ,  G10L19/025

CPC classification number: G10L19/032 ,  G10L19/025 ,  G10L19/20 ,  G10L21/038 ,  G10L25/18 ,  H04N19/60

Abstract: A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal type of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal type information of the high frequency signal of the current frame.