公开(公告)号：US20120114155A1

公开(公告)日：2012-05-10

申请号：US13287360

申请日：2011-11-02

申请人： Makoto NISHIZAKI ,  Yoshihisa Nakatoh

发明人： Makoto NISHIZAKI ,  Yoshihisa Nakatoh

IPC分类号： H04R25/00

CPC分类号： H04R25/43

摘要： A hearing aid, that outputs a microphone input signal and an external input signal, improved includes a directional microphone, an external input terminal, a hearing aid processor that inputs sound signals from the microphone and the external input terminal, and a receiver that outputs sound signal that have undergone hearing aid processing by the hearing aid processor. The hearing aid processor has a mixer that mixes a sound signal from the microphone with a sound signal from the external input terminal and outputs a sound signal to the receiver, a mixing ratio decider that decides a mixing ratio between the sound signal from the microphone and a sound signal from the external input terminal, a front sound detector that is connected to the mixing ratio decider, and a similarity calculator that determines whether or not sound collected by the directional microphone is that of an external device.

摘要翻译： 输出麦克风输入信号和外部输入信号的助听器包括定向麦克风，外部输入端子，输入来自麦克风和外部输入端子的声音信号的助听器处理器以及输出声音的接收器 由助听器处理器进行助听器处理的信号。 助听器处理器具有混合器，其将来自麦克风的声音信号与来自外部输入端子的声音信号混合，并将声音信号输出到接收器;混合比率判定器，其确定来自麦克风的声音信号与 来自外部输入端子的声音信号，与混合比率判定器连接的前方声音检测器，以及判断由定向麦克风收集的声音是否为外部设备的声音信号的相似度计算器。

公开(公告)号：US20100208902A1

公开(公告)日：2010-08-19

申请号：US12770971

申请日：2010-04-30

申请人： Shinichi Yoshizawa ,  Yoshihisa Nakatoh

发明人： Shinichi Yoshizawa ,  Yoshihisa Nakatoh

IPC分类号： H04R29/00

CPC分类号： G10L21/0208 ,  G10L2021/02161

摘要： The noise removal device includes plural microphones, a time axis adjustment unit, an FFT analysis unit, and a noise removal processing unit, and determines frequency signals of a to-be-extracted sound by performing a threshold judgment on each of the phase distances, of the mixed sounds each received through a corresponding one of the microphones, in the case where the phases are expressed by the expression ψ′(t)=mod 2π(ψ(t)−2πft) (f denotes a reference frequency).

摘要翻译： 噪声消除装置包括多个麦克风，时间轴调整单元，FFT分析单元和噪声去除处理单元，并且通过对每个相位距离执行阈值判定来确定提取的声音的频率信号， （t）= mod 2＆pgr（ψ（t）-2＆pgr; ft）表示相位的情况下的混合声音（f表示参考频率 ）。

公开(公告)号：US07711560B2

公开(公告)日：2010-05-04

申请号：US10504926

申请日：2004-02-04

申请人： Maki Yamada ,  Makoto Nishizaki ,  Yoshihisa Nakatoh ,  Shinichi Yoshizawa

发明人： Maki Yamada ,  Makoto Nishizaki ,  Yoshihisa Nakatoh ,  Shinichi Yoshizawa

IPC分类号： G10L15/28

CPC分类号： G10L15/065 ,  G10L15/08

摘要： A speech recognition apparatus equipped with the garbage acoustic model storage unit storing the garbage acoustic model which learned the collection of unnecessary words. A feature value calculation unit calculates the feature parameter necessary for recognition by acoustically analyzing the unidentified input speech including the non-language speech per frame which is a unit for speech analysis. A garbage acoustic score calculation unit calculates the garbage acoustic score by comparing the feature parameter and the garbage acoustic model, and a garbage acoustic score correction unit corrects the garbage acoustic score calculated by the garbage acoustic score calculation unit so as to raise it in the frame where the non-language speech is inputted. A recognition result output unit outputs, as the recognition result of the unidentified input speech, the word string with the highest cumulative score of the language score, the word acoustic score, and the garbage acoustic score which is corrected by the garbage acoustic score correcting unit.

摘要翻译： 一种配备有垃圾声模型存储单元的语音识别装置，其存储了学习了不必要单词的收集的垃圾声模型。 特征值计算单元通过声学分析包括作为语音分析的单位的每帧非语言语音的未识别输入语音来计算识别所需的特征参数。 垃圾声音评分计算单元通过比较特征参数和垃圾声音模型来计算垃圾声音得分，并且垃圾声音得分校正单元校正由垃圾声分数计算单元计算出的垃圾声音得分，以将其提高到帧 其中输入非语言语言。 识别结果输出单元作为未识别输入语音的识别结果，输出由垃圾声分数校正单元校正的具有最高累积分数的语言分数，词声分数和垃圾声音分数的单词串， 。

公开(公告)号：US20100030562A1

公开(公告)日：2010-02-04

申请号：US12517388

申请日：2008-08-25

申请人： Shinichi Yoshizawa ,  Yoshihisa Nakatoh

发明人： Shinichi Yoshizawa ,  Yoshihisa Nakatoh

IPC分类号： G10L21/00

CPC分类号： G10L21/0208 ,  G10L2025/783 ,  G10L2025/937

摘要： A sound determination device (100) includes: an FFT unit (2402) which receives a mixed sound including a to-be-extracted sound and a noise, and obtains a frequency signal of the mixed sound for each of a plurality of times included in a predetermined duration; and a to-be-extracted sound determination unit (101 (j)) which determines, when the number of the frequency signals at the plurality of times included in the predetermined duration is equal to or larger than a first threshold value and a phase distance between the frequency signals out of the frequency signals at the plurality of times is equal to or smaller than a second threshold value, each of the frequency signals with the phase distance as a frequency signal of the to-be-extracted sound. The phase distance is a distance between phases of the frequency signals when a phase of a frequency signal at a time t is ψ(t) (radian) and the phase is represented by ψ′(t)=mod 2π(ψ(t)−2πft) (where f is an analysis-target frequency).

摘要翻译： 声音确定装置（100）包括：FFT单元（2402），其接收包括被提取的声音和噪声的混合声音，并且获得包含在多个时间中的多个频率的混合声音的频率信号 预定的持续时间; 以及被提取的声音确定单元（101（j）），其在所述预定持续时间中包括的多个频率信号的数量等于或大于第一阈值和相位距离时，确定 在多个频率信号之间的频率信号之间的频率信号等于或小于第二阈值，每个频率信号具有相位距离作为要提取的声音的频率信号。 相位距离是当时间t的频率信号的相位为psi（t）（弧度）时的频率信号的相位之间的距离，并且相位由psi'（t）= mod 2pi（psi（t））表示， -2pift）（其中f是分析目标频率）。

公开(公告)号：US20090067647A1

公开(公告)日：2009-03-12

申请号：US11665265

申请日：2006-04-11

申请人： Shinichi Yoshizawa ,  Tetsu Suzuki ,  Yoshihisa Nakatoh

发明人： Shinichi Yoshizawa ,  Tetsu Suzuki ,  Yoshihisa Nakatoh

IPC分类号： H04B1/00 ,  G10L19/00

CPC分类号： G10L21/0272 ,  G10L19/0204

摘要： A mixed audio separation system (100) which separates a specific audio from among a mixed audio (S100) includes a local frequency information generation unit (105) which obtains pieces of local frequency information (S103) corresponding to local reference waveforms (S102), based on the local reference waveforms (S102) and an analysis waveform which is the waveform of the mixed audio (S100). Each of the local reference waveforms (S102) (i) constitutes a part of a reference waveform for analyzing a predetermined frequency, (ii) has a predetermined temporal/spatial resolution and (iii) includes at least one of an amplification spectrum and a phase spectrum in the predetermined frequency. The system includes: a specific audio's frequency feature value extraction unit (106) which performs pattern matching between a first set which is the pieces of local frequency information and a second set of pieces of frequency information (S103) of a predetermined specific audio, and extracts the first set of the pieces of local frequency information (S103), based on a result of the pattern matching; and an audio signal generation unit which generates a signal of the specific audio, based on the first set of the pieces of local frequency information (S103) extracted by the specific audio's frequency feature value extraction unit.

摘要翻译： 从混合音频（S100）中分离特定音频的混合音频分离系统（100）包括本地频率信息生成单元（105），其获取与局部参考波形相对应的本地频率信息（S103）（S102）， 基于本地参考波形（S102）和作为混合音频的波形的分析波形（S100）。 每个局部参考波形（S102）（i）构成用于分析预定频率的参考波形的一部分，（ii）具有预定的时间/空间分辨率，以及（iii）包括放大光谱和相位 频谱在预定频率。 该系统包括：特定音频频率特征值提取单元（106），其执行作为本地频率信息的第一组与预定特定音频的第二组频率信息（S103）之间的模式匹配，以及 基于模式匹配的结果提取第一组本地频率信息（S103）; 以及音频信号生成单元，其基于由特定音频的频率特征值提取单元提取的第一组本地频率信息（S103），生成特定音频的信号。

公开(公告)号：US20050256712A1

公开(公告)日：2005-11-17

申请号：US10504926

申请日：2004-02-04

申请人： Maki Yamada ,  Makoto Nishizaki ,  Yoshihisa Nakatoh ,  Shinichi Yoshizawa

发明人： Maki Yamada ,  Makoto Nishizaki ,  Yoshihisa Nakatoh ,  Shinichi Yoshizawa

IPC分类号： G06F3/16 ,  G10L11/02 ,  G10L15/00 ,  G10L15/04 ,  G10L15/06 ,  G10L15/08 ,  G10L15/10 ,  G10L15/14 ,  G10L15/18 ,  G10L15/20 ,  G10L15/22 ,  G10L15/28

CPC分类号： G10L15/065 ,  G10L15/08

摘要： The speech recognition apparatus (1) is equipped with the garbage acoustic model storage unit (110) storing the garbage acoustic model which learned the collection of the unnecessary words; the feature value calculation unit (101) which calculates the feature parameter necessary for recognition by acoustically analyzing the unidentified input speech including the non-language speech per frame which is a unit for speech analysis; the garbage acoustic score calculation unit (111) which calculates the garbage acoustic score by comparing the feature parameter and the garbage acoustic model; the garbage acoustic score correction unit (113) which corrects the garbage acoustic score calculated by the garbage acoustic score calculation unit (111) so as to raise it in the frame where the non-language speech is inputted; and the recognition result output unit (105) which outputs, as the recognition result of the unidentified input speech, the word string with the highest cumulative score of the language score, the word acoustic score, and the garbage acoustic score which is corrected by the garbage acoustic score correcting means.

摘要翻译： 语音识别装置（1）配备有存储无用声音模型的垃圾声模型存储单元（110），该垃圾声模型学习了不必要的字的收集; 特征值计算单元（101），其通过声学分析包括作为用于语音分析的单位的每个非语言语音的未识别输入语音来计算识别所需的特征参数; 所述垃圾声分数计算部（111）通过比较所述特征参数和所述垃圾声模型来计算所述无声声分数; 所述垃圾声音得分校正单元（113）对由所述垃圾声音乐评分计算单元（111）计算出的所述无声声音乐评分进行校正，以提高其输入所述非语言语音的帧; 以及识别结果输出单元（105），作为未识别输入语音的识别结果，输出具有语言得分的最高累积分数，词声分数和垃圾声音得分的单词串，其由 垃圾声分数校正装置。

公开(公告)号：US20050060147A1

公开(公告)日：2005-03-17

申请号：US10954589

申请日：2004-10-01

申请人： Takeshi Norimatsu ,  Shuji Miyasaka ,  Yoshihisa Nakatoh ,  Mineo Tsushima ,  Tomokazu Ishikawa

发明人： Takeshi Norimatsu ,  Shuji Miyasaka ,  Yoshihisa Nakatoh ,  Mineo Tsushima ,  Tomokazu Ishikawa

IPC分类号： G10L19/00 ,  G10L21/02

CPC分类号： G10L19/032 ,  G10L19/0212 ,  G10L19/038

摘要： With respect to audio signal coding and decoding apparatuses, there is provided a coding apparatus that enables a decoding apparatus to reproduce an audio signal even through it does not use all of data from the coding apparatus, and a decoding apparatus corresponding to the coding apparatus. A quantization unit constituting a coding apparatus includes a first sub-quantization unit comprising sub-quantization units for low-band, intermediate-band, and high-band; a second sub-quantization unit for quantizing quantization errors from the first sub-quantization unit; and a third sub-quantization unit for quantizing quantization errors which have been processed by the first sub-quantization unit and the second sub-quantization unit.

摘要翻译： 对于音频信号编码和解码装置，提供了一种编码装置，即使通过编码装置不使用全部数据，能够使解码装置再现音频信号，也可以使用与编码装置对应的解码装置。 构成编码装置的量化单元包括：第一子量化单元，包括用于低频带，中频带和高频带的子量化单元; 第二子量化单元，用于量化来自第一子量化单元的量化误差; 以及用于量化由第一子量化单元和第二子量化单元处理的量化误差的第三子量化单元。

公开(公告)号：US5978759A

公开(公告)日：1999-11-02

申请号：US157419

申请日：1998-09-21

申请人： Mineo Tsushima ,  Yoshihisa Nakatoh ,  Takeshi Norimatsu

发明人： Mineo Tsushima ,  Yoshihisa Nakatoh ,  Takeshi Norimatsu

IPC分类号： G10L21/0232 ,  G10L21/038 ,  G10L25/12 ,  G10L3/02

CPC分类号： G10L21/038 ,  G10L21/0232 ,  G10L25/12

摘要： Apparatus for expanding the bandwidth of speech signals such that a narrowband speech signal is input and digitized, the spectral envelope information and residual information are extracted from the digitized signal by linear predictive coding analysis, the spectral envelope information is expanded into wideband information by a spectral envelope converter, the residual information is expanded into wideband information by a residual converter, the converted spectral envelope information and residual information are combined to produce a wideband speech signal, frequency information not contained in the input signal is extracted from the obtained wideband speech signal by a filter, and the resulting signal is added to the original digitized input signal, and the obtained signal is converted into an analog signal as the output signal of the apparatus. The apparatus comprises a linear mapping function codebook used for converting spectral parameters, and a weights calculator and an adder for weighing and summing function outputs.

摘要翻译： 用于扩展语音信号的带宽使得窄带语音信号被输入和数字化的装置，通过线性预测编码分析从数字化信号中提取频谱包络信息和残差信息，频谱包络信息通过频谱扩展成宽带信息 通过残差转换器将残差信息扩展为宽带信息，将经转换的频谱包络信息和残差信息组合起来产生宽带语音信号，从所获得的宽带语音信号中提取不包含在输入信号中的频率信息， 滤波器，并且将所得到的信号加到原始的数字化输入信号上，并将获得的信号转换为模拟信号作为装置的输出信号。 该装置包括用于转换频谱参数的线性映射函数码本，以及权重计算器和用于对功能输出求和的加法器。

公开(公告)号：US5040234A

公开(公告)日：1991-08-13

申请号：US446431

申请日：1989-12-05

申请人： Tooru Yamamoto ,  Kazuharu Date ,  Yoshihisa Nakatoh ,  Shigeki Imai

发明人： Tooru Yamamoto ,  Kazuharu Date ,  Yoshihisa Nakatoh ,  Shigeki Imai

IPC分类号： G11B15/10 ,  G11B15/02 ,  G11B15/18 ,  G11B15/46 ,  G11B15/467 ,  G11B19/28 ,  H02P29/00

CPC分类号： G11B15/1875 ,  G11B15/026 ,  G11B15/46 ,  G11B15/4673 ,  G11B19/28 ,  Y10S388/912

摘要： A circuit for generating a pulse-like timing signal driving a stepping motor which is used to drive for example a magnetic tape to run in an audio tape or video tape recording and reproducing apparatus. A rewritable memory stores output pattern data and time information for generating the timing signal. This timing signal generating circuit comprises a rewrite control circuit responsive to an operation mode instructing signal, for performing a predetermined operational processing on basic pattern data and basic time information and storing the resulting output pattern data and uniquely related time information in the rewritable memory. This timing signal generating circuit further comprises a circuit for generating a clock signal having a predetermined cycle, a counter for counting this clock signal and a circuit for sequentially reading out the time information from the rewritable memory, detecting match between the read-out time information and count value of the counter, and outputting the output data stored in the rewritable memory corresponding to the time information for which match is detected, as the timing signal. This output circuit comprises a circuit for continuously outputting the present output data until another match is detected between the subsequently read-out time information and the count value of the counter.

摘要翻译： 用于产生驱动步进电机的脉冲状定时信号的电路，其用于驱动例如磁带以在音频磁带或录像带记录和再现装置中运行。 可重写存储器存储用于产生定时信号的输出模式数据和时间信息。 该定时信号发生电路包括响应于操作模式指示信号的重写控制电路，用于对基本模式数据和基本时间信息执行预定的操作处理，并将所得到的输出模式数据和唯一相关的时间信息存储在可重写存储器中。 该定时信号发生电路还包括用于产生具有预定周期的时钟信号的电路，用于对该时钟信号进行计数的计数器和用于从可重写存储器顺序读出时间信息的电路，检测读出时间信息 和计数器的计数值，并且将与检测到匹配的时间信息相对应的存储在可重写存储器中的输出数据输出作为定时信号。 该输出电路包括用于连续输出当前输出数据的电路，直到在随后的读出时间信息和计数器的计数值之间检测到另一匹配。