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91. 发明申请

US20030215104A1 Audio reproducing apparatus 有权
标题翻译：音频再现装置
公开(公告)号：US20030215104A1
公开(公告)日：2003-11-20
申请号：US10390328
申请日：2003-03-17
申请人： Sony Corporation
发明人： Yuji Yamada , Koyuru Okimoto
IPC分类号： H04R005/02 , H04R005/00
CPC分类号： H04S1/005
摘要： In an audio reproducing apparatus, first and second filters convolute impulse responses corresponding to transfer functions from a position where a right-hand sound source is located to the right and left ears of the listener into an audio signal, respectively, and third and fourth filters convolute impulse responses corresponding to transfer functions from a position where a left-hand sound source is located to the right and left ears of the listener into another audio signal, respectively. Fifth and sixth filters extract low-frequency components of the audio signal, and seventh and eighth filters extract low-frequency components of the another audio signal. The output signals of the first, third, fifth, and seventh filters are added, and the output signals of the second, fourth, the sixth, and eighth filters are added.
摘要翻译：在音频再现装置中，第一和第二滤波器分别将对应于传递函数的对应于右侧声源的位置的收音机的旋转脉冲响应分别转换成音频信号，第三和第四滤波器分别对应于从左侧声源所位于的位置到收听者的左耳和左耳的传递函数的卷积脉冲响应到另一音频信号。第五和第六滤波器提取音频信号的低频分量，第七和第八滤波器提取另一音频信号的低频分量。添加第一，第三，第五和第七滤波器的输出信号，并且相加第二，第四，第六和第八滤波器的输出信号。

92. 发明申请

US20030210792A1 Expanded stereophonic circuit with tonal compensation 有权
标题翻译：具有色调补偿的扩展立体声电路
公开(公告)号：US20030210792A1
公开(公告)日：2003-11-13
申请号：US10144495
申请日：2002-05-13
发明人： Alan Anderson Hoover
IPC分类号： H04R005/00
CPC分类号： H04S1/002 , H04R5/04
摘要： A stereophonic processing system provided with spatial expansion of the stereophonic sound so that a pair of spaced-apart loudspeakers will acoustically appear to be spaced apart further then they actually are. The spatial expansion circuit includes tonal compensation.
摘要翻译：立体声处理系统提供了立体声的空间扩展，使得一对隔开的扬声器将声学地看起来进一步间隔开，然后它们实际上是。空间扩展电路包括色调补偿。

93. 发明申请

US20030152236A1 Audio signal adjusting apparatus 失效
标题翻译：音频信号调节装置
公开(公告)号：US20030152236A1
公开(公告)日：2003-08-14
申请号：US10367369
申请日：2003-02-13
发明人： Tadashi Morikawa
IPC分类号： H04R005/00
CPC分类号： H04S3/02 , A63F2300/6063
摘要： Herein disclosed is an audio signal adjusting apparatus for respectively adjusting a plurality of raw audio signals to produce a plurality of adjusted audio signals, comprising: audio signal adjusting means for respectively adjusting said raw audio signals to produce said adjusted audio signals, and to be operably connected with a plurality of loudspeakers for respectively producing a plurality of audio sounds in a specific sound space, said audio sounds being respectively indicative of said adjusted audio signals, and collectively originated from at least one imaginary sound source having a width, said imaginary sound source being imagined to produce said audio sounds at a location spaced apart from each of said loudspeakers; location control signal producing means for producing a location control signal indicative of said location of said imaginary sound source; controlling means for controlling said audio signal adjusting means to allow each of said raw audio signals to be adjusted by said audio signal adjusting means in response to said location control signal, pointer image producing means for producing a pointer image indicative of said location of said imaginary sound source; and superimposing means to be operably connected with video signal producing means for producing a video signal having a screen image having a portion in association with said location of said imaginary sound source, designed to superimpose said pointer image on said portion of said screen image after receiving said video signal from said video signal producing means in response to said location control signal, and to be operably connected with display means having a screen to display said screen image on said screen.
摘要翻译：这里公开了一种用于分别调整多个原始音频信号以产生多个经调整的音频信号的音频信号调节装置，包括：音频信号调整装置，用于分别调整所述原始音频信号以产生所述经调整的音频信号，并且可操作地与多个扬声器连接，用于分别在特定声音空间中产生多个音频声音，所述音频声音分别指示所述调整的音频信号，并且共同地源于具有宽度的至少一个虚拟声源，所述虚拟声源被想象为在与每个所述扬声器间隔开的位置处产生所述音频声音; 位置控制信号产生装置，用于产生指示所述假想声源的所述位置的位置控制信号; 控制装置，用于控制所述音频信号调节装置，以响应于所述位置控制信号，由所述音频信号调节装置调节每个所述原始音频信号;指针图像产生装置，用于产生指示所述虚构的所述位置的指针图像声源; 以及与视频信号产生装置可操作地连接的叠加装置，用于产生具有与所述虚拟声源的所述位置相关联的部分的屏幕图像的视频信号，该视频信号被设计为在接收到所述屏幕图像的所述部分之后将所述指针图像叠加来自所述视频信号产生装置的所述视频信号响应于所述位置控制信号，并且可操作地与具有屏幕的显示装置连接以在所述屏幕上显示所述屏幕图像。

94. 发明申请

US20030138108A1 Audio conferencing with three-dimensional audio encoding 有权
标题翻译：音频会议与三维音频编码
公开(公告)号：US20030138108A1
公开(公告)日：2003-07-24
申请号：US10054428
申请日：2002-01-22
申请人： Avaya Technology Corp.
发明人： Christopher Reon Gentle
IPC分类号： H04R005/00
CPC分类号： H04R27/00
摘要： An apparatus and method for assigning each conferee to a conference a three-dimensional position with respect to a central listening position and the other conferees. Each conferees audio stream is encoded with the assigned three-dimensional position to produce an encoded audio stream corresponding to each conferee. For each conferee, the encoded audio streams of the other conferees are mixed to produce a mixed audio stream wherein the conferee listens to the conference from the central listening position.
摘要翻译：一种用于将每个与会者分配给会议相对于中央收听位置的三维位置和其他与会者的装置和方法。每个与会人音频流被编码与分配的三维位置，以产生对应于每个与会者的编码音频流。对于每个与会者，其他与会者的编码音频流被混合以产生混合音频流，其中与会者从中央收听位置监听会议。

95. 发明申请

US20030112979A1 Encoder and decoder 有权
标题翻译：编码器和解码器
公开(公告)号：US20030112979A1
公开(公告)日：2003-06-19
申请号：US10204298
申请日：2002-10-25
发明人： Keisuke Toyama , Shiro Suzuki , Minoru Tsuji
IPC分类号： H04R005/00
CPC分类号： H04B1/667 , G10L19/0208
摘要： The present invention relates to an encoding device for saving the number of bits of codes. In step S11, the differential value between a normalization coefficient Bi to be encoded and a normalization coefficient Binull1 for an encoding unit Ainull1 in a band adjacent to the lower side of an encoding unit Ai corresponding to the normalization coefficient Bi is computed. In step S12, reference is made to a table in which a differential value having a high frequency of occurrence is associated with a code having a small number of bits, and a code corresponding to the computed differential value is read. In step S13, it is determined whether or not all normalization coefficients B have been encoded. If it is determined that all normalization coefficients B have been encoded, in step S14, the code read in step S12 is output. The present invention is applicable to an audio recorder.
摘要翻译：本发明涉及一种用于节省代码比特数的编码装置。在步骤S11中，计算要编码的归一化系数Bi与与归一化系数Bi相对应的编码单元Ai的下侧的频带中的编码单位Ai-1的归一化系数Bi-1的差分值。在步骤S12中，参考具有高出现频率的差分值与具有少量位的代码相关联的表，并且读取与所计算出的差分值相对应的代码。在步骤S13中，确定所有归一化系数B是否已被编码。如果确定所有归一化系数B已被编码，则在步骤S14中，输出在步骤S12中读取的代码。本发明可应用于音频记录器。

96. 发明申请

US20030076973A1 Sound signal processing method and sound reproduction apparatus 有权
标题翻译：声音信号处理方法和声音再现装置
公开(公告)号：US20030076973A1
公开(公告)日：2003-04-24
申请号：US10252969
申请日：2002-09-23
发明人： Yuji Yamada
IPC分类号： H04R005/00 , H04R005/02
CPC分类号： H04S1/005 , H04S1/007 , H04S7/304
摘要： Input digital sound signals are subjected to filtering for convolution of respective impulse responses, and resulting signals are supplied to time delay setting circuits. In each of the time delay setting circuits, output signals from adjacent two stages of delay circuits, which correspond to a direction closest to the detected facing direction of a listener are taken out as pairs of signals L2a, L2b, R2a and R2b. In crossfade processing circuits, each paired signals (L2a and L2b or R2a and R2b) are added at a proportion depending on the detected facing direction of the listener. Output signals of the crossfade processing circuits are taken out through correction filters for compensating frequency characteristic changes in a high frequency range. As a result, when listening to sound with headphones and localizing a sound image at an arbitrary fixed position outside the listener's head, shock noises generated upon change in the facing direction of the listener are reduced.
摘要翻译：对数字声音信号进行滤波以对各个脉冲响应进行卷积，并将得到的信号提供给时间延迟设置电路。在每个时间延迟设定电路中，对应于最接近收听者面向方向的方向的相邻两级延迟电路的输出信号作为信号对L2a，L2b，R2a和R2b取出。在交叉渐变处理电路中，根据检测到的收听者的朝向的方向，以一定比例添加每个成对信号（L2a和L2b或R2a和R2b）。交叉渐变处理电路的输出信号通过用于补偿高频范围内的频率特性变化的校正滤波器被取出。结果，当用耳机收听声音并将声像定位在收听者头部外的任意固定位置时，减少了听众面对方向上的变化产生的震动噪音。

97. 发明申请

US20030059055A1 Receiver, method, program and transport signal for adapting the sound volume of an acoustic signal of an incoming call 审中-公开
标题翻译：接收机，方法，程序和传输信号，用于调整来电的声信号的音量
公开(公告)号：US20030059055A1
公开(公告)日：2003-03-27
申请号：US10196050
申请日：2002-07-15
发明人： Laurent Lucat , Gilles Miet
IPC分类号： H04H005/00 , H04R005/00 , H03G005/00
CPC分类号： H04S5/00 , H04R2499/11
摘要： The invention relates to a communication receiver provided with spatialization means for generating a pseudo-stereophonic output signal from a monophonic input signal. The spatialization means comprise spectrum extension means for generating on a first output channel an output signal containing synthesis frequencies extrapolated from part of the original band of the monophonic input signal, while the input signal is sent over a second output channel.
摘要翻译：本发明涉及一种通信接收器，其具有用于从单声道输入信号产生伪立体声输出信号的空间化装置。空间化装置包括频谱扩展装置，用于在输入信号通过第二输出信道发送时，在第一输出信道上产生包含从单声道输入信号的原始频带的一部分外推的合成频率的输出信号。

98. 发明申请

US20020181711A1 Music similarity function based on signal analysis 有权
标题翻译：基于信号分析的音乐相似度函数
公开(公告)号：US20020181711A1
公开(公告)日：2002-12-05
申请号：US10004157
申请日：2001-10-31
申请人： Compaq Information Technologies Group, L.P.
发明人： Beth T. Logan , Ariel Salomon
IPC分类号： H04R005/00
CPC分类号： G11B27/105 , G11B27/28 , G11B27/34 , H04S1/007 , Y10S707/99942 , Y10S707/99945 , Y10S707/99948
摘要： The present invention computer method and apparatus determines music similarity by generating a K-means (instead of Gaussian) cluster signature and a beat signature for each piece of music. The beat of the music is included in the subsequent distance measurement.
摘要翻译：本发明的计算机方法和装置通过生成每个音乐片段的K-means（而不是高斯）群集签名和节拍签名来确定音乐相似度。音乐的节拍包括在随后的距离测量中。

99. 发明申请

US20020172371A1 Method and system for automatically detecting and powering PC speakers 有权
标题翻译：自动检测和供电PC扬声器的方法和系统
公开(公告)号：US20020172371A1
公开(公告)日：2002-11-21
申请号：US09858135
申请日：2001-05-15
发明人： Brian A. Baker , Mark A. Casparian , Kenneth S. Seethaler , Gregory J. Zandt
IPC分类号： H04R005/00
CPC分类号： H04R5/04
摘要： A method of powering an audio output device of a computer system, by determining whether a passive or active audio output device is connected to an audio output jack of the computer system and, based on this determination, providing an appropriate power level to the audio output jack. For example, if the determination is made that a passive audio output device is connected to the audio output jack, then a 3-watt power signal is applied to the audio output jack, but if the determination is made that an active audio output device is connected to the audio output jack, then a null-watt power signal is applied to the audio output jack. The type of audio output device present may be determined by sensing an impedance at the audio output jack. This sensing may be performed by comparing a load voltage associated with the impedance to a reference voltage. The output of a switch device (multiplexer) having a first input from an AC97 audio codec and headphone amplifier and a second input from a passive speaker amplifier is selectively controlled by the sensing circuit.
摘要翻译：通过确定无源或有源音频输出设备是否连接到计算机系统的音频输出插孔来为计算机系统的音频输出设备供电的方法，并且基于该确定，向音频输出提供适当的功率电平插口。例如，如果确定无源音频输出设备连接到音频输出插孔，则3瓦功率信号被施加到音频输出插孔，但是如果确定有源音频输出设备是连接到音频输出插孔，然后将1/4声道电源信号施加到音频输出插孔。可以通过感测音频输出插孔的阻抗来确定存在的音频输出设备的类型。该感测可以通过将与阻抗相关联的负载电压与参考电压进行比较来执行。具有来自AC97音频编解码器和耳机放大器的第一输入和来自无源扬声器放大器的第二输入的开关装置（多路复用器）的输出由感测电路选择性地控制。

100. 发明申请

US20020159612A1 Personal computer audio interface device and method of using the same 审中-公开
标题翻译：个人电脑音频接口设备及其使用方法
公开(公告)号：US20020159612A1
公开(公告)日：2002-10-31
申请号：US09844909
申请日：2001-04-27
发明人： Stan Kosciuk
IPC分类号： H04R005/00 , H01P005/12
CPC分类号： H03H7/38 , H04R5/02
摘要： An interface system for interconnecting a personal computer to audio input ports of a home stereo system. An illustrative embodiment of the invention comprises impedance transformers for improving the impedance match between an audio output port of the PC and the higher impedance audio input ports of the stereo system. An elongated low voltage, low impedance cable has coupling devices at each end, the coupling devices being dimensioned and arranged to establish respective signal paths through the cable by electrically interconnecting the audio output port and the corresponding low impedance windings of the first and second impedance transformers. The illustrative interface system further includes additional coupling devices dimensioned and arranged to accommodate electrical connections between corresponding high impedance windings of the first and second impedance transformers and the first and second audio input ports of the home stereo system.
摘要翻译：一种用于将个人计算机与家用立体声系统的音频输入端口相互连接的接口系统。本发明的说明性实施例包括用于改善PC的音频输出端口与立体声系统的较高阻抗音频输入端口之间的阻抗匹配的阻抗变换器。细长的低电压，低阻抗电缆在每个端部具有耦合装置，耦合装置的尺寸和布置以通过电连接第一和第二阻抗变压器的音频输出端口和相应的低阻抗绕组来建立通过电缆的相应信号路径。说明性接口系统还包括尺寸和布置成适应第一和第二阻抗变压器的相应高阻抗绕组与家庭立体声系统的第一和第二音频输入端口之间的电连接的附加耦合装置。

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