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1. 发明授权

EP2656341B1 APPARATUS FOR PERFORMING A VOICE ACTIVITY DETECTION 有权
标题翻译：用于执行语音活动检测的装置
公开(公告)号：EP2656341B1
公开(公告)日：2018-02-21
申请号：EP10861113.8
申请日：2010-12-24
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Zhe
IPC分类号： G10L25/78 , G10L25/93
CPC分类号： G10L25/93 , G10L25/78 , G10L2025/786
摘要： A voice activity detection apparatus (1) for determining a voice activity detection decision (VADD) for an input audio signal, wherein the voice activity detection apparatus (1) comprises a state detector (2) adapted to determine a current working state (WS) of at least two different working states of the voice activity detection apparatus (1) dependent on the input audio signal wherein each of the at least two different working states (WS) is associated with a corresponding working state parameter decision set (WSPDS) including at least one voice activity decision parameter (VADP) and a voice activity calculator (3) adapted to calculate a voice activity detection parameter value for the at least one VADP of the working state parameter decision set (WSPDS) associated with the current working state (WS) and to determine the voice activity detection decision (VADD) by comparing the calculated voice activity detection parameter value of the respective voice activity decision parameter (VADP) with a threshold.

2. 发明公开

EP3268964A1 LOW-POWER VOICE COMMAND DETECTOR 无效
标题翻译：低功率语音指令检测器
公开(公告)号：EP3268964A1
公开(公告)日：2018-01-17
申请号：EP16700673.3
申请日：2016-01-07
申请人： Sony Corporation
发明人： BÖRJESON, Henrik , ABRAHAMSSON, Magnus
IPC分类号： G10L25/84 , G10L25/78
CPC分类号： G10L15/22 , G10L25/78 , G10L25/84 , G10L2015/223 , G10L2025/786
摘要： A low-power voice command detection method uses an audio monitoring device to capture sound. The captured sound is analyzed in steps to determine if it fulfills a number of criteria regarding sound level, voice content and identifiable voice commands. For each step the processing is more complex and power demanding. A threshold between the first and subsequent steps is used to gate further processing. This threshold is dynamically adjusted, based on the outcome of the analysis, to avoid unnecessary processing and increase system performance.

3. 发明授权

EP2529370B1 SYSTEMS AND METHODS FOR SPEECH EXTRACTION 有权
标题翻译：用于语音提取的系统和方法
公开(公告)号：EP2529370B1
公开(公告)日：2017-12-27
申请号：EP11737836.4
申请日：2011-01-31
申请人： University of Maryland, College Park
发明人： ESPY-WILSON, Carol , VISHNUBHOTLA, Srikanth
IPC分类号： G10L21/0272 , G10L25/90
CPC分类号： G10L21/0308 , G10L19/008 , G10L19/09 , G10L21/0272 , G10L2025/786 , G10L2025/906
摘要： In some embodiments, a processor-readable medium stores code representing instructions to cause a processor to receive an input signal having a first component and a second component. An estimate of the first component of the input signal is calculated based on an estimate of a pitch of the first component of the input signal. An estimate of the input signal is calculated based on the estimate of the first component of the input signal and an estimate of the second component of the input signal. The estimate of the first component of the input signal is modified based on a scaling function to produce a reconstructed first component of the input signal. The scaling function is a function of at least one of the input signal, the estimate of the first component of the input signal, the estimate of the second component of the input signal, or a residual signal.

4. 发明公开

EP3084763A4 ESTIMATION OF BACKGROUND NOISE IN AUDIO SIGNALS 有权
标题翻译：音频信号背景风险估计
公开(公告)号：EP3084763A4
公开(公告)日：2016-12-14
申请号：EP14872781
申请日：2014-12-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SEHLSTEDT MARTIN
IPC分类号： G10L25/78 , G10L25/06 , G10L25/21 , G10L25/84
CPC分类号： G10L21/0208 , G10L19/18 , G10L19/24 , G10L21/0216 , G10L25/06 , G10L25/21 , G10L25/78 , G10L25/84 , G10L2025/783 , G10L2025/786 , H04M1/62 , H04W8/22
摘要： The invention relates to a background noise estimator and a method therein, for supporting sound activity detection in an audio signal segment. The method comprises reducing a current background noise estimate when the audio signal segment is determined to comprise music and the current background noise estimate exceeds a minimum value. This is to be performed when an energy level of an audio signal segment is more than a threshold higher than a long term minimum energy level, lt_min, which is determined over a plurality of preceding audio signal segments, or, when the energy level of the audio signal segment is less than a threshold higher than lt_min, but no pause is detected in the audio signal segment.

5. 发明公开

EP3078027A1 PROCÉDÉ DE DÉTECTION DE LA VOIX 有权转让
标题翻译： STIMMENDETEKTIONSVERFAHREN
公开(公告)号：EP3078027A1
公开(公告)日：2016-10-12
申请号：EP14814978.4
申请日：2014-11-27
申请人： Adeunis RF
发明人： MAOUCHE, Karim
IPC分类号： G10L25/84 , G10L25/78
CPC分类号： G10L25/84 , G10L2025/783 , G10L2025/786
摘要： The invention relates to a voice detection method which makes it possible to detect the presence of voice signals in an noisy acoustic signal x(t) from a microphone, comprising the following consecutive steps: calculating a detection function FD(τ) based on calculating a difference function D(τ) varying in accordance with the shift τ on an integration window with length W starting at the time t0, with: a step of adapting the threshold in said current interval, in accordance with values calculated from the acoustic signal x(t) established in said current interval; searching for the minimum of the detection function FD(τ) and comparing said minimum with a threshold, for (τ) varying in a predetermined time interval referred to as current interval so as to detect the possible presence of a fundamental frequency F
0 that is characteristic of a voice signal in said current interval.
摘要翻译：一种语音检测方法，其能够检测来自麦克风的噪声声信号x（t）中的语音信号的存在，包括以下连续步骤：基于计算差分函数D（τ）计算检测函数FD（τ） τ）根据在时间t0开始的具有长度W的积分窗口上的移位τ而变化，具有：根据从在以下建立的声信号x（t）计算的值在所述当前间隔中适应阈值的步骤：表示当前间隔; 搜索最小检测功能FD（τ）并将最小值与阈值进行比较，对于（τ）在被称为当前间隔的预定时间间隔中变化，以便检测作为特征的基频F0的可能存在在所述当前间隔中的语音信号。

6. 发明授权

EP2828854B1 HIERARCHICAL ACTIVE VOICE DETECTION 有权
标题翻译： ACTIVE分层语音识别
公开(公告)号：EP2828854B1
公开(公告)日：2016-03-16
申请号：EP13716558.5
申请日：2013-03-21
申请人： Dolby Laboratories Licensing Corporation
发明人： DICKINS, Glenn N. , NEAL, Timothy J. , SHUE, Yen-Liang
IPC分类号： G10L25/78 , G10L19/16
CPC分类号： G10L25/78 , G10L19/173 , G10L2025/786

7. 发明授权

EP2491559B1 METHOD AND BACKGROUND ESTIMATOR FOR VOICE ACTIVITY DETECTION 有权
标题翻译：方法和设备，用来确定语言活动的背景检测
公开(公告)号：EP2491559B1
公开(公告)日：2014-12-10
申请号：EP10825285.9
申请日：2010-10-18
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： SEHLSTEDT, Martin
IPC分类号： G10L25/78 , G10L25/84 , G10L25/06
CPC分类号： G10L25/84 , G10L15/063 , G10L15/20 , G10L25/06 , G10L25/78 , G10L2015/0636 , G10L2025/786

8. 发明授权

EP2159788B1 A VOICE ACTIVITY DETECTING DEVICE AND METHOD 有权
标题翻译：语音活动检测装置及方法
公开(公告)号：EP2159788B1
公开(公告)日：2012-01-04
申请号：EP08734254.9
申请日：2008-05-07
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Zhe
IPC分类号： G10L11/02
CPC分类号： G10L25/78 , G10L2025/786
摘要： A voice activity detecting device comprises a background analyzing unit which is used to analyze the characteristic of a background noise of current signal according to the input result of VAD judge and obtain the parameter relating to the wave characteristic of the background noise and then output; a threshold amending unit for the VAD judgement which is used to obtain the threshold amending value for the VAD judgement and output according to the parameter output from the background analyzing unit; a VAD judgement unit which is used to amend the going amending threshold for the VAD judgement according to the amending value output from the threshold amending unit for the VAD judgement, and judge the background noise according to the amended threshold for the VAD judgement, and output the result of the VAD judgement. A voice activity detecting method is provided according to the voice activity detecting device.

9. 发明公开

EP1861847A4 ADAPTIVE NOISE STATE UPDATE FOR A VOICE ACTIVITY DETECTOR 审中-公开
标题翻译：自适应噪音状态持续一段语音活动检测器
公开(公告)号：EP1861847A4
公开(公告)日：2010-06-23
申请号：EP06719835
申请日：2006-01-26
申请人： MINDSPEED TECH INC
发明人： GAO YANG , SHLOMOT EYAL , BENYASSINE ADIL
IPC分类号： G10L11/02
CPC分类号： G10L25/78 , G10L2025/786

10. 发明公开

EP1861846A4 ADAPTIVE VOICE MODE EXTENSION FOR A VOICE ACTIVITY DETECTOR 有权转让
标题翻译：自适应语音模式下扩展语音活动检测器
公开(公告)号：EP1861846A4
公开(公告)日：2010-06-23
申请号：EP06734716
申请日：2006-01-26
申请人： MINDSPEED TECH INC
发明人： GAO YANG , SHLOMOT EYAL , BENYASSINE ADIL
IPC分类号： G10L11/02
CPC分类号： G10L25/78 , G10L2025/786

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