-
公开(公告)号：US20240203408A1
公开(公告)日：2024-06-20
申请号：US18591853
申请日：2024-02-29
发明人： Xiaojian Li , Jinhui Sheng , Yue Lang , Wei Jiang
CPC分类号： G10L15/187 , G10L15/02 , G10L15/22 , G10L15/24 , G10L25/78 , G10L2015/025 , G10L2015/088 , G10L2015/223
摘要： A speech wakeup method includes that a bone conduction microphone collects a bone conduction signal for speech detection, which includes information about a command word input by the sound source, and detects a wakeup word based on the bone conduction signal.
-
公开(公告)号：US10403301B2
公开(公告)日：2019-09-03
申请号：US15789131
申请日：2017-10-20
发明人： Christof Faller , Alexis Favrot , Peter Grosche , Yue Lang
IPC分类号： G10L25/84 , G10L21/034 , G10L21/02 , G10L25/78
摘要： The invention relates to an audio signal processing apparatus for processing an input earpiece audio signal upon the basis of a microphone audio signal, the audio signal processing apparatus comprising a voice activity detector being configured to determine a voice activity indicator signal upon the basis of the input earpiece audio signal, a noise magnitude determiner being configured to determine a microphone noise magnitude indicator signal upon the basis of the microphone audio signal, a gain factor determiner being configured to determine a gain factor signal upon the basis of the voice activity indicator signal and the microphone noise magnitude indicator signal, and a weighter being configured to weight the input earpiece audio signal by the gain factor signal to obtain an output earpiece audio signal.
-
公开(公告)号：US09877131B2
公开(公告)日：2018-01-23
申请号：US15177994
申请日：2016-06-09
发明人： Peter Grosche , Yue Lang
CPC分类号： H04S1/007 , H04R5/02 , H04R5/04 , H04R2203/12 , H04R2499/11 , H04R2499/15 , H04S1/002 , H04S2420/01 , H04S2420/07
摘要： An apparatus and a method for enhancing a spatial perception of an audio signal are provided creating increased interaural-level differences. To obtain this effect, two dipoles are used: one for producing a left audio signal and one for producing a right audio signal.
-
公开(公告)号：US09763020B2
公开(公告)日：2017-09-12
申请号：US15137493
申请日：2016-04-25
发明人： Yue Lang , Zhengzhong Du
CPC分类号： H04S7/307 , H04R5/033 , H04R5/04 , H04S1/002 , H04S1/005 , H04S3/004 , H04S7/306 , H04S2400/11 , H04S2400/15 , H04S2420/01
摘要： A virtual stereo synthesis method includes acquiring at least one sound input signal on a first side and at least one sound input signal on a second side, separately performing ratio processing on a preset head related transfer function (HRTF) left-ear component and a preset HRTF right-ear component of each sound input signal on the second side, to obtain a filtering function of each sound input signal on the second side, separately performing convolution filtering on each sound input signal on the second side and the filtering function of the sound input signal on the second side, to obtain the filtered signal on the second side, and synthesizing all of the sound input signals on the first side and all of the filtered signals on the second side into a virtual stereo signal where the method may alleviate a coloration effect, and reduce calculation complexity.
-
公开(公告)号：US20160249152A1
公开(公告)日：2016-08-25
申请号：US15142063
申请日：2016-04-29
发明人： Wenyu Jin , Willem Bastiaan Kleijn , Yue Lang , Peter Grosche
IPC分类号： H04S7/00
CPC分类号： H04S7/30 , H04S7/301 , H04S2420/01
摘要： A system and a method for evaluating an acoustic transfer function, wherein the acoustic transfer function is a transfer function from one acoustic source to a reproduction area sampled by a limited number of microphone modules.
摘要翻译： 一种用于评估声学传递函数的系统和方法，其中声学传递函数是从一个声源到由有限数量的麦克风模块采样的再现区域的传递函数。
-
6.发明授权Method for parametric spatial audio coding and decoding, parametric spatial audio coder and parametric spatial audio decoder 有权参数空间音频编码和解码方法，参数空间音频编码器和参数空间音频解码器公开(公告)号：US09324329B2
公开(公告)日：2016-04-26
申请号：US14145328
申请日：2013-12-31
发明人： David Virette , Yue Lang , Jianfeng Xu
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/00
摘要： A method for parametric spatial audio coding of a multi-channel audio signal comprising a plurality of audio channel signals is provided, the method comprising: calculating at least two different spatial coding parameters for an audio channel signal of the plurality of audio channel signals, selecting at least one spatial coding parameter of the at least two different spatial coding parameters associated with the audio channel signal on the basis of the values of the calculated spatial coding parameters; including a quantized representation of the selected spatial coding parameter into a parameter section of an audio bitstream; and setting a parameter type flag in the parameter section of the audio bitstream indicating the type of the selected spatial coding parameter being included into the audio bitstream.
摘要翻译： 提供了一种包括多个音频信道信号的多声道音频信号的参数空间音频编码的方法，所述方法包括：为所述多个音频信道信号的音频信道信号计算至少两个不同的空间编码参数，选择 基于所计算的空间编码参数的值，与所述音频信道信号相关联的所述至少两个不同空间编码参数中的至少一个空间编码参数; 包括所选择的空间编码参数的量化表示到音频比特流的参数部分中; 以及在音频比特流的参数部分中设置参数类型标志，该参数部分指示被包括在音频比特流中的所选择的空间编码参数的类型。
-
公开(公告)号：US20140211947A1
公开(公告)日：2014-07-31
申请号：US14227695
申请日：2014-03-27
发明人： Wenhai Wu , Lei Miao , Yue Lang , David Virette
IPC分类号： H04S3/02
CPC分类号： H04S3/02 , G10L19/008 , G10L19/02
摘要： An embodiment of the present invention provides a method for generating a downmixed signal, including: performing a time-frequency transform on a received left sound channel signal and a received right sound channel signal to obtain a frequency domain signal, and dividing the frequency domain signal into several frequency bands; calculating a sound channel energy ratio and a sound channel phase difference of each frequency band; calculating a phase difference between the downmixed signal and a first sound channel signal in each frequency band according to the sound channel energy ratio and the sound channel phase difference; and calculating a frequency domain downmixed signal according to the left sound channel signal, the right sound channel signal, and the phase difference between the downmixed signal and the first sound channel signal in each frequency band. This method effectively improves quality of stereo encoding and decoding.
摘要翻译： 本发明的实施例提供了一种用于产生下混合信号的方法，包括：对接收到的左声道信号和接收到的右声道信号执行时频变换以获得频域信号，并且将频域信号 进入几个频带; 计算每个频带的声道能量比和声道相位差; 根据声道能量比和声道相位差计算每个频带中的下混合信号与第一声道信号之间的相位差; 以及根据左声道信号，右声道信号以及每个频带中的下混合信号和第一声道信号之间的相位差来计算频域缩混信号。 该方法有效提高立体声编码和解码质量。
-
8.发明申请Method for Parametric Spatial Audio Coding and Decoding, Parametric Spatial Audio Coder and Parametric Spatial Audio Decoder 有权参数空间音频编码和解码方法，参数空间音频编码器和参数空间音频解码器公开(公告)号：US20140112482A1
公开(公告)日：2014-04-24
申请号：US14145328
申请日：2013-12-31
发明人： David Virette , Yue Lang , Jianfeng Xu
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , H04S3/00
摘要： A method for parametric spatial audio coding of a multi-channel audio signal comprising a plurality of audio channel signals is provided, the method comprising: calculating at least two different spatial coding parameters for an audio channel signal of the plurality of audio channel signals, selecting at least one spatial coding parameter of the at least two different spatial coding parameters associated with the audio channel signal on the basis of the values of the calculated spatial coding parameters; including a quantized representation of the selected spatial coding parameter into a parameter section of an audio bitstream; and setting a parameter type flag in the parameter section of the audio bitstream indicating the type of the selected spatial coding parameter being included into the audio bitstream.
摘要翻译： 提供了一种包括多个音频信道信号的多声道音频信号的参数空间音频编码的方法，所述方法包括：为所述多个音频信道信号的音频信道信号计算至少两个不同的空间编码参数，选择 基于所计算的空间编码参数的值，与所述音频信道信号相关联的所述至少两个不同空间编码参数中的至少一个空间编码参数; 包括所选择的空间编码参数的量化表示到音频比特流的参数部分中; 以及在音频比特流的参数部分中设置参数类型标志，该参数部分指示被包括在音频比特流中的所选择的空间编码参数的类型。
-
公开(公告)号：US10405089B2
公开(公告)日：2019-09-03
申请号：US15894485
申请日：2018-02-12
发明人： Simone Fontana , Yue Lang , Filippo Fazi , Mincheol Shin , Ferdinando Oliveri
摘要： An audio signal processing apparatus for processing an input audio signal is provided, the apparatus comprising a plurality of filters, each filter configured to filter the input audio signal to obtain a plurality of filtered audio signals, each filter designed according to an extended mode matching beamforming applied to a surface of a half revolution, the surface partially characterizing a loudspeaker enclosure shape, a plurality of scaling units, each scaling unit configured to scale the plurality of filtered audio signals using a plurality of gain coefficients to obtain a plurality of scaled filtered audio signals, and a plurality of adders, each adder configured to combine the plurality of scaled filtered audio signals, thereby providing an output audio signal for producing a sound field having a beam directivity pattern defined by the plurality of gain coefficients.
-
公开(公告)号：US10375503B2
公开(公告)日：2019-08-06
申请号：US15786278
申请日：2017-10-17
摘要： A wave field synthesis apparatus for driving an array of loudspeakers with drive signals, the apparatus includes a sound field synthesizer for generating sound field drive signals for causing the array of loudspeakers to generate one or more sound fields at one or more audio zones, a binaural renderer for generating binaural drive signals for causing the array of loud-speakers to generate specified sound pressures at at least two positions, wherein the at least two positions are determined based on a detected position and/or orientation of a listener, and a decision unit for deciding whether to generate the drive signals using the sound field synthesizer or using the binaural renderer.
-
-
-
-
-
-
-
-
-
搜索结果
55 条记录 (耗时 0.026 秒)
