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11. 发明申请

US20190189146A1 METHOD AND SYSTEM FOR DIAGNOSING CORONARY ARTERY DISEASE (CAD) USING A VOICE SIGNAL 审中-公开
公开(公告)号：US20190189146A1
公开(公告)日：2019-06-20
申请号：US16218878
申请日：2018-12-13
申请人： BEYOND VERBAL COMMUNICATION LTD.
发明人： Yoram LEVANON , Yotam LUZ
IPC分类号： G10L25/48 , G10L25/12 , G10L25/90 , G10L25/24
CPC分类号： G10L25/48 , A61B5/02007 , G10L25/12 , G10L25/18 , G10L25/24 , G10L25/66 , G10L25/90 , G10L2025/906
摘要： The present invention extends to methods, systems, for diagnosing coronary artery disease (CAD) in patients by using their voice signal comprising receiving voice signal data indicative of speech from the patient.

12. 发明授权

US10284970B2 Kalman filtering based speech enhancement using a codebook based approach 有权
公开(公告)号：US10284970B2
公开(公告)日：2019-05-07
申请号：US15438388
申请日：2017-02-21
申请人： GN HEARING A/S
发明人： Mathew Shaji Kavalekalam , Mads Graesboll Christensen , Fredrik Gran , Jesper B. Boldt
IPC分类号： H04R25/00 , H04B15/00 , G10L21/0232 , G10L15/02 , G10L19/06 , H04R1/10 , G10L21/0208 , G10L25/12
摘要： A hearing device for enhancing speech intelligibility, the hearing device includes: an input transducer for providing an input signal comprising a speech signal and a noise signal; a processing unit; an acoustic output transducer coupled to the processing unit, the acoustic output transducer configured to provide an audio output signal based on an output signal form the processing unit; wherein the processing unit is configured to determine one or more parameters of the input signal based on a codebook based approach (CBA) processing; and wherein the processing unit is configured to perform a Kalman filtering of the input signal based on the determined one or more parameters so that the output signal has an enhanced speech intelligibility.

13. 发明授权

US10251002B2 Noise characterization and attenuation using linear predictive coding 有权
公开(公告)号：US10251002B2
公开(公告)日：2019-04-02
申请号：US15076489
申请日：2016-03-21
申请人： Starkey Laboratories, Inc.
发明人： Arthur Salvetti , Martin McKinney
IPC分类号： H04R25/00 , G10L21/0224 , G10L21/0264 , G10L25/84 , G10L25/12
摘要： Disclosed herein, among other things, are apparatus and methods for noise characterization and attenuation for hearing assistance devices. In various embodiments, a method of operating a hearing assistance device includes receiving an audio signal using a microphone of the hearing assistance device and identifying a transient in the audio signal. Linear predictive coding (LPC) is used to isolate speech segments and non-speech segments of the transient and fluctuating noise, and the non-speech segments of the transient and fluctuating noise are attenuated to reduce annoyance of the noise and maintain audibility of perceptually important transients in speech.

14. 发明申请

US20190080706A1 LINEAR PREDICTION COEFFICIENT CONVERSION DEVICE AND LINEAR PREDICTION COEFFICIENT CONVERSION METHOD 审中-公开
公开(公告)号：US20190080706A1
公开(公告)日：2019-03-14
申请号：US16191104
申请日：2018-11-14
申请人： NTT DOCOMO, INC.
发明人： Nobuhiko NAKA , Vesa RUOPPILA
IPC分类号： G10L19/06 , G10L19/12 , G10L25/12
摘要： The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.

15. 发明申请

US20190066707A1 METHOD FOR REDUCTION OF ALIASING INTRODUCED BY SPECTRAL ENVELOPE ADJUSTMENT IN REAL-VALUED FILTERBANKS 审中-公开
公开(公告)号：US20190066707A1
公开(公告)日：2019-02-28
申请号：US16174056
申请日：2018-10-29
申请人： DOLBY INTERNATIONAL AB
发明人： Kristofer KJOERLING , Lars VILLEMOES
IPC分类号： G10L19/02 , G10L25/12 , G10L19/083 , G10L19/025 , G10L25/21 , G10L19/26 , G10L19/00 , H03H17/02 , G10L25/48 , G10L25/18 , G10L19/12
CPC分类号： G10L19/0204 , G10L19/00 , G10L19/025 , G10L19/083 , G10L19/12 , G10L19/26 , G10L25/12 , G10L25/18 , G10L25/21 , G10L25/48 , H03H17/0266
摘要： The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels dependent on the sign of the channels, as defined in the application, reduced aliasing is achieved. Furthermore, the grouping of the channels during gain-calculation, gives an improved energy estimate of the real valued subband signals in the filterbank.

16. 发明申请

US20190052960A1 DOMINANT FREQUENCY PROCESSING OF AUDIO SIGNALS 审中-公开
公开(公告)号：US20190052960A1
公开(公告)日：2019-02-14
申请号：US16075642
申请日：2016-11-04
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： Sunil BHARITKAR
IPC分类号： H04R3/04 , G10L21/038 , G10L25/12
CPC分类号： H04R3/04 , G10L21/038 , G10L25/12
摘要： An example non-transitory computer-readable medium includes instructions. When executed by a processor, the instructions cause the processor to remove nondominant frequencies from a low frequency portion of an audio signal. The instructions also cause the processor to apply non-linear processing to a remainder of the low frequency portion to generate a plurality of harmonics. The instructions cause the processor to insert the plurality of harmonics into an audio output corresponding to a high frequency portion of the audio signal. The audio output is to be provided to an audio output device.

17. 发明授权

US10163450B2 Linear predictive analysis apparatus, method, program and recording medium 有权
公开(公告)号：US10163450B2
公开(公告)日：2018-12-25
申请号：US15924887
申请日：2018-03-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Yutaka Kamamoto , Takehiro Moriya , Noboru Harada
IPC分类号： G10L19/06 , G10L25/12 , G10L25/06 , G10L25/90 , G10L25/21
摘要： An autocorrelation calculating part calculates autocorrelation Ro(i) from an input signal. A predictive coefficient calculating part performs linear predictive analysis using modified autocorrelation. R′o(i) obtained by multiplying the autocorrelation Ro(i) by a coefficient wo(i). Here, a case is comprised where, for at least part of each order i, the coefficient wo(i) corresponding to each order i monotonically decreases as a value having positive correlation with a pitch gain in an input signal of a current frame or a past frame increases.

18. 发明申请

US20180082698A1 METHOD FOR REDUCTION OF ALIASING INTRODUCED BY SPECTRAL ENVELOPE ADJUSTMENT IN REAL-VALUED FILTERBANKS 审中-公开
公开(公告)号：US20180082698A1
公开(公告)日：2018-03-22
申请号：US15828829
申请日：2017-12-01
申请人： Dolby International AB
发明人： Kristofer KJOERLING , Lars VILLEMOES
IPC分类号： G10L19/083 , G10L25/12 , G10L19/02 , G10L19/025 , G10L19/26
CPC分类号： G10L19/0204 , G10L19/00 , G10L19/025 , G10L19/083 , G10L19/12 , G10L19/26 , G10L25/12 , G10L25/18 , G10L25/21 , G10L25/48 , H03H17/0266
摘要： The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels dependent on the sign of the channels, as defined in the application, reduced aliasing is achieved. Furthermore, the grouping of the channels during gain-calculation, gives an improved energy estimate of the real valued subband signals in the filterbank.

19. 发明授权

US09747927B2 System and method for multifaceted singing analysis 有权
公开(公告)号：US09747927B2
公开(公告)日：2017-08-29
申请号：US15119747
申请日：2014-08-15
申请人： National Institute of Advanced Industrial Science and Technology
发明人： Tomoyasu Nakano , Kazuyoshi Yoshii , Masataka Goto
IPC分类号： G10L21/00 , G10L25/54 , G10L13/02 , G06F17/30 , G10H1/00 , G10L19/022 , G10L21/01 , G10L21/14 , G10L25/12 , G10L25/00
CPC分类号： G10L25/54 , G06F17/30758 , G10H1/00 , G10H2210/056 , G10L13/02 , G10L19/022 , G10L21/003 , G10L21/01 , G10L21/10 , G10L21/14 , G10L25/12 , G10L25/24 , G10L25/90
摘要： A system for multifaceted singing analysis for retrieval of songs or music including singing voices having some relationship in latent semantics with a singing voice included in one particular song or music. A topic analyzing processor uses a topic model to analyze a plurality of vocal symbolic time series obtained for a plurality of musical audio signals. The topic analyzing processor generates a vocal topic distribution for each of the musical audio signals whereby the vocal topic distribution is composed of a plurality of vocal topics each indicating a relationship of one of the musical audio signals with the other musical audio signals. The topic analyzing processor generates a vocal symbol distribution for each of the vocal topics whereby the vocal symbol distribution indicates occurrence probabilities for the vocal symbols. A multifaceted singing analyzing processor performs analysis of singing voices included in musical audio signals, in the multifaceted viewpoint.

20. 发明申请

US20170053655A1 LINEAR PREDICTION COEFFICIENT CONVERSION DEVICE AND LINEAR PREDICTION COEFFICIENT CONVERSION METHOD 审中-公开
标题翻译：线性预测系数转换装置和线性预测系数转换方法
公开(公告)号：US20170053655A1
公开(公告)日：2017-02-23
申请号：US15306292
申请日：2015-04-16
申请人： NTT DOCOMO, INC.
发明人： Nobuhiko NAKA , Vesa RUOPPILA
IPC分类号： G10L19/06 , G10L25/12
CPC分类号： G10L19/06 , G10L19/12 , G10L25/12
摘要： The purpose of the present invention is to estimate, with a small amount of computation, a linear prediction synthesis filter after conversion of an internal sampling frequency. A linear prediction coefficient conversion device is a device that converts first linear prediction coefficients calculated at a first sampling frequency to second linear prediction coefficients at a second sampling frequency different from the first sampling frequency, which includes a means for calculating, on the real axis of the unit circle, a power spectrum corresponding to the second linear prediction coefficients at the second sampling frequency based on the first linear prediction coefficients or an equivalent parameter, a means for calculating, on the real axis of the unit circle, autocorrelation coefficients from the power spectrum, and a means for converting the autocorrelation coefficients to the second linear prediction coefficients at the second sampling frequency.
摘要翻译：本发明的目的是在内部采样频率转换之后，通过少量的计算来估计线性预测合成滤波器。线性预测系数转换装置是将在第一采样频率计算出的第一线性预测系数以与第一采样频率不同的第二采样频率转换为第二线性预测系数的装置，该装置包括：所述单位圆，基于所述第一线性预测系数或等效参数在所述第二采样频率处对应于所述第二线性预测系数的功率谱;用于在所述单位圆的实轴上计算所述功率的自相关系数的装置频谱，以及用于在第二采样频率将自相关系数转换为第二线性预测系数的装置。

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