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1.发明授权Low voltage speech synthesis system with pulse width digital-to-analog converter 失效低电压语音合成系统，具有脉宽数字到模拟转换器
公开(公告)号：US4357489A
公开(公告)日：1982-11-02
申请号：US118138
申请日：1980-02-04
申请人： Alva E. Henderson , Gene A. Frantz
发明人： Alva E. Henderson , Gene A. Frantz
CPC分类号： G09B19/06 , G10L13/047
摘要： Integrated circuit speech synthesis system utilizing complementary metal-insulator-semiconductor technology to achieve low voltage operation, wherein a pluse width modulated digital-to-analog converter is employed to provide for accurate conversion of digital signals into analog signals even though the low voltage operation prohibits the large voltage swings normally required for digital-to-analog converter circuitry. The speech synthesis system includes a linear predictive filter as a speech synthesizer which utilizes coded reflection coefficients to produce digital signals representative of human speech. A microprocessor controls the access of digitized speech data which is stored in a memory. The speech synthesizer and microprocessor along with the pulse width modulated digital-to-analog converter are implemented in complementary metal-insulator-semiconductor technology. The system also includes a speaker for generating audible sounds in the form of synthesized human speech from the analog signals provided by the digital-to-analog converter.
摘要翻译： 利用互补金属绝缘体半导体技术实现低电压操作的集成电路语音合成系统，其中采用宽度调制的数模转换器来提供数字信号到模拟信号的精确转换，即使低电压操作禁止 数模转换器电路通常需要大的电压摆幅。 语音合成系统包括作为语音合成器的线性预测滤波器，其利用编码反射系数来产生表示人类语音的数字信号。 微处理器控制存储在存储器中的数字化语音数据的访问。 语音合成器和微处理器以及脉冲宽度调制的数模转换器在互补金属绝缘体半导体技术中实现。 该系统还包括一个扬声器，用于根据由数模转换器提供的模拟信号，以合成的人类语音的形式产生可听见的声音。
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2.发明授权Method and apparatus for converting voice characteristics of synthesized speech 失效用于转换合成语音的语音特征的方法和装置
公开(公告)号：US4624012A
公开(公告)日：1986-11-18
申请号：US375434
申请日：1982-05-06
申请人： Kun-Shan Lin , Alva E. Henderson , Gene A. Frantz
发明人： Kun-Shan Lin , Alva E. Henderson , Gene A. Frantz
CPC分类号： G10L21/00
摘要： Method and apparatus for converting voice characteristics of synthesized speech from a single applied source of synthesized speech in a manner obtaining modified voice characteristics pertaining to the apparent age and/or sex of the speaker. The apparatus is capable of altering the voice characteristics of synthesized speech to obtain modified voice sounds simulating child-like, teenage, adult, aged and sexual preference characteristics by control of vocal track parameters including pitch period, vocal tract model, and speech data rate. A source of synthesized speech having a predetermined pitch period, a predetermined vocal tract model, and a predetermined speech rate is separated into the respective speech parameters. The values of pitch, the speech data frame length, and the speech data rate are then varied in a preselected manner to modify the voice characteristics of the synthesized speech from the source thereof. Thereafter, the changed speech data parameters are re-combined into a modified synthesized speech data format having different voice characteristics with respect to the synthesized speech from the source, and an audio signal representative of human speech is generated from the modified synthesized speech data format from which audible synthesized speech may be generated.
摘要翻译： 从合成语音的单个应用源转换合成语音的语音特征的方法和装置，获得与演讲者的表观年龄和/或性别相关的修改的语音特征。 该装置能够通过控制包括音高周期，声道模型和语音数据速率在内的声道参数来改变合成语音的语音特征，从而获得模拟儿童，青少年，成人，年龄和性偏好特征的修改语音。 具有预定音调周期，预定声道模型和预定语音速率的合成语音源被分成各个语音参数。 然后，以预选的方式改变音调值，语音数据帧长度和语音数据速率，以从其源修改合成语音的语音特征。 此后，改变的语音数据参数被重新组合成相对于来自源的合成语音具有不同语音特征的修改的合成语音数据格式，并且从修改的合成语音数据格式生成代表人类语音的音频信号， 可以产生可听到的合成语音。
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公开(公告)号：US4310831A
公开(公告)日：1982-01-12
申请号：US118156
申请日：1980-02-04
申请人： Alva E. Henderson , Gene A. Frantz
发明人： Alva E. Henderson , Gene A. Frantz
CPC分类号： G10L13/047 , G09B19/06
摘要： A pulse width modulated digital-to-analog converter for utilization in low voltage, integrated circuit speech synthesis circuitry. A digitally programmable shift register is utilized to generate a pulse, which is generally related to the magnitude of a digital signal. A programmable delay circuit provides finer resolution by converting the least significant digital bits of data into pulse width information of shorter duration than the minimum pulse width generated by the controllable shift register. Pulse width information generated by the shift register and delay circuit is applied to the bases of two crossconnected transistors to drive a speaker or voice coil.
摘要翻译： 一种用于低电压集成电路语音合成电路的脉宽调制数模转换器。 数字可编程移位寄存器用于产生脉冲，其通常与数字信号的幅度相关。 可编程延迟电路通过将数据的最低有效数字位转换成比由可控移位寄存器产生的最小脉冲宽度更短的持续时间的脉冲宽度信息来提供更精细的分辨率。 由移位寄存器和延迟电路产生的脉冲宽度信息被施加到两个交叉连接的晶体管的基极以驱动扬声器或音圈。
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4.发明授权Speech synthesis system with alternative coded or uncoded parameter formats 失效具有替代编码或未编码参数格式的语音合成系统
公开(公告)号：US4323732A
公开(公告)日：1982-04-06
申请号：US118367
申请日：1980-02-04
CPC分类号： G09B19/06 , G10L13/047
摘要： Speech parameter signals may be coded to consist of fewer bits for data reduction in memory. In this system both coded and uncoded signals are stored with an associated control signal which controls selection of corresponding direct or decoder circuit coupling of memory output to a speech synthesizer.
摘要翻译： 语音参数信号可以被编码为由存储器中的数据减少的较少位组成。 在该系统中，编码和未编码信号都存储有相关联的控制信号，该控制信号控制对存储器输出相应的直接或解码器电路耦合到语音合成器的选择。
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5.发明授权Integrated speech synthesis circuit with internal and external excitation capabilities 失效具有内部和外部激励功能的集成语音合成电路
公开(公告)号：US4319083A
公开(公告)日：1982-03-09
申请号：US118255
申请日：1980-02-04
摘要： A speech synthesis circuit implementable in an integrated circuit device, capable of converting frames of data into analog signals representative of human speech. The frames of data are comprised of digital representations of values of pitch, energy and certain filter coefficients, which are stored in non-volatile memory. The filter coefficients are utilized to control a linear predictive filter which is excited by voiced and unvoiced excitations stored in non-volatile memory. A control circuit coupling the excitation signals to the linear predictive filter allows the operator to select an external excitation signal rather than precalculated stored excitation signals. Thus, the synthesizer may be utilized in a vocoder application, wherein a residual excitation signal transmitted from an analysis circuit may be utilized as the excitation signal.
摘要翻译： 一种可在集成电路装置中实现的语音合成电路，其能够将数据帧转换成代表人类语音的模拟信号。 数据帧由存储在非易失性存储器中的音调，能量和某些滤波器系数的值的数字表示构成。 滤波器系数用于控制由存储在非易失性存储器中的有声和无声激励而激发的线性预测滤波器。 将激励信号耦合到线性预测滤波器的控制电路允许操作者选择外部激励信号而不是预先计算的存储的激励信号。 因此，合成器可以用在声码器应用中，其中从分析电路发送的残余激励信号可以用作激励信号。
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公开(公告)号：US4328395A
公开(公告)日：1982-05-04
申请号：US118139
申请日：1980-02-04
申请人： Alva E. Henderson
发明人： Alva E. Henderson
摘要： A speech synthesis system with a linear predictive filter. The linear predictive filter utilizes coded reflection coefficients to produce digital signals representative of human speech. A variable interpolation circuit within the linear predictive filter allows a variable number of interpolation steps to be calculated between successive values of reflection coefficients. Additionally, a user programmable option allows the user to select a linear, nonlinear, or a combination form of interpolation based on stored scale data.
摘要翻译： 一种具有线性预测滤波器的语音合成系统。 线性预测滤波器利用编码反射系数产生代表人类语音的数字信号。 线性预测滤波器内的可变内插电路允许在反射系数的连续值之间计算可变数量的插值步骤。 此外，用户可编程选项允许用户基于存储的比例数据选择线性，非线性或组合形式的内插。
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公开(公告)号：US4441201A
公开(公告)日：1984-04-03
申请号：US342311
申请日：1982-01-25
摘要： Speech synthesis system implementable in an integrated circuit device capable of converting frames of speech data at a variable frame rate into analog signals representative of human speech. The frames of speech data comprise digital representations of values of pitch, energy, filter coefficients and coded frame rate data. The speech synthesis system includes a linear predictive coding filter as a speech synthesizer which utilizes the speech data at a varying frame rate to produce digital speech signals representative of human speech. Frames of digital speech data including coded frame rate data are received by an input, with the frame rate data being decoded to control both the rate at which the incoming variable-length frames of speech data are accepted by the speech synthesizer and the number of interpolation calculations required to define interpolated speech values between adjacent incoming frames of speech data. A frame control circuit accomplishes the foregoing utilization of speech data at a variable frame rate by the speech synthesizer by providing for a variable number of interpolation calculations between adjacent speech frames from last implemented speech data in which the number of interpolation calculations in a given instance is determined by the frame rate data. A microprocessor controls the access of selected speech data which is stored in a memory. The system also includes a digital-to-analog converter for converting the digital speech signals produced by the filter into analog signals and a speaker for generating audible sounds in the form of synthesized human speech from the analog signals provided by the digital-to-analog converter.
摘要翻译： 语音合成系统可以在能够以可变帧速率将语音数据的帧转换成代表人类语音的模拟信号的集成电路装置中实现。 语音数据帧包括音高，能量，滤波器系数和编码帧速率数据的值的数字表示。 语音合成系统包括作为语音合成器的线性预测编码滤波器，其以变化的帧速率利用语音数据产生代表人类语音的数字语音信号。 包括编码帧速率数据的数字语音数据的帧由输入接收，帧速率数据被解码，以控制语音合成器接收的输入可变长度的语音数据帧的速率和插值次数 在相邻输入的语音数据帧之间定义内插语音值所需的计算。 帧控制电路通过语音合成器以可变帧速率实现上述语音数据的利用，通过提供来自最后实现的语音数据的相邻语音帧之间的可变数量的插值计算，其中给定情况下的插值计算的数量为 由帧速率数据确定。 微处理器控制存储在存储器中的所选语音数据的访问。 该系统还包括一个数模转换器，用于将由滤波器产生的数字语音信号转换为模拟信号，以及扬声器，用于从由数模转换器提供的模拟信号中以合成的人类语音的形式产生可听见的声音 转换器。
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8.发明授权Speech synthesis integrated circuit device having variable frame rate capability 失效具有可变帧率能力的语音合成集成电路装置
公开(公告)号：US4658424A
公开(公告)日：1987-04-14
申请号：US240685
申请日：1981-03-05
申请人： Alva E. Henderson
发明人： Alva E. Henderson
CPC分类号： G10L13/047
摘要： An integrated circuit device or chip digitally synthesizes human speech employing a linear predictive filter and a variable frame rate. The variable frame rate provides a more natural speech by slowing or speeding the frame rate for a particular application used in a system which constructs the speech data to be synthesized from allophone codes.
摘要翻译： 集成电路器件或芯片使用线性预测滤波器和可变帧速率对人类语音进行数字合成。 可变帧速率通过减慢或加速用于构建要从异音素代码合成的语音数据的系统中使用的特定应用来提供更自然的语音。
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公开(公告)号：US4419540A
公开(公告)日：1983-12-06
申请号：US308293
申请日：1981-10-05
申请人： Alva E. Henderson
发明人： Alva E. Henderson
摘要： A speech synthesis system with a linear predictive filter. The linear predictive filter utilizes coded reflection coefficients to produce digital signals representative of human speech. A variable interpolation circuit within the linear predictive filter allows a variable number of interpolation steps to be calculated between successive values of reflection coefficients. Additionally, a user programmable option allows the user to select a linear, nonlinear, or a combination form of interpolation based on stored scale data. The synthesizer output circuit also functions as a digital-to-analog converter.
摘要翻译： 一种具有线性预测滤波器的语音合成系统。 线性预测滤波器利用编码反射系数产生代表人类语音的数字信号。 线性预测滤波器内的可变内插电路允许在反射系数的连续值之间计算可变数量的插值步骤。 此外，用户可编程选项允许用户基于存储的比例数据选择线性，非线性或组合形式的内插。 合成器输出电路还用作数模转换器。
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