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1. 发明申请

US20040264717A1 Audio reproduction apparatus 有权
标题翻译：音频再现装置
公开(公告)号：US20040264717A1
公开(公告)日：2004-12-30
申请号：US10897280
申请日：2004-07-22
申请人： Yamaha Corporation
发明人： Shinichi Fujita , Hironari Kawai
IPC分类号： H04R005/00 , H04R005/02
CPC分类号： H04R5/04 , H04R27/00 , H04R2227/005 , H04R2420/03 , H04S3/00
摘要： A first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel and a second selector switch couples output of the power amplifier of the m channel to a speaker terminal for the selected second zone whereby an audio signal can be supplied to either one of a plurality of second zones. In one aspect of the invention, a first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel determined by a control section and a second selector switch couples output of the m channel determined by the control section to a speaker terminal for the selected second zone whereby an audio signal can be supplied to one or more zones among plural second zones.
摘要翻译：第一选择器开关将对应于所选择的第二区域的m通道的第二音频信号输出到m通道的功率放大器，而第二选择器开关将m通道的功率放大器的输出耦合到所选择的第二区域的扬声器端子由此可以将音频信号提供给多个第二区域中的任一个。在本发明的一个方面，第一选择器开关将对应于所选择的第二区域的m个信道的第二音频信号输出到由控制部分确定的m个信道的功率放大器，并且第二选择器开关将所确定的m个信道的输出通过控制部分到用于所选择的第二区域的扬声器端子，由此可以将音频信号提供给多个第二区域中的一个或多个区域。

2. 发明申请

US20040258259A1 Acoustic apparatus and acoustic setting method 失效
标题翻译：声学设备和声学设定方法
公开(公告)号：US20040258259A1
公开(公告)日：2004-12-23
申请号：US10863462
申请日：2004-06-08
发明人： Hiroshi Koyama
IPC分类号： H04R005/00 , H04R005/02
CPC分类号： H04R29/008 , H04R5/04 , H04R2420/03 , H04S3/00 , H04S7/40
摘要： A setting up operation for connecting a number of speakers can be easily executed by a system in which setups and pattern numbers are stored in a memory. When the user operates an operation input unit and selects an easy setup, a default setting pattern number is read out from the memory and displayed on the display. The user operates encoders by watching display contents on a display. When the pattern number corresponding to his own speaker construction obtained by a chart or the like is displayed, he determines it by a key operation. A microcomputer stores the determined pattern number in a memory and the speaker setup corresponding to the pattern number is read out from a ROM in the microcomputer. Each unit of an acoustic apparatus is controlled on the basis of the read-out speaker setup, thereby performing the speaker setup. The user can perform the speaker setup merely by inputting the pattern number using the encoders.
摘要翻译：用于连接多个扬声器的设置操作可以通过其中设置和模式编号存储在存储器中的系统容易地执行。当用户操作操作输入单元并选择容易的设置时，从存储器中读出默认设置模式号并显示在显示器上。用户通过观看显示器上的显示内容来操作编码器。当通过图表等获得的与他自己的扬声器结构相对应的图形号显示时，他通过键操作来确定它。微型计算机将确定的图案号存储在存储器中，并且从微型计算机中的ROM中读出对应于图案编号的扬声器设置。基于读出的扬声器设置来控制声学设备的每个单元，由此执行扬声器设置。用户只需使用编码器输入图案编号即可进行扬声器设置。

3. 发明申请

US20040258246A1 Bass frequency amplifying apparatus 审中-公开
标题翻译：低音放大装置
公开(公告)号：US20040258246A1
公开(公告)日：2004-12-23
申请号：US10492583
申请日：2004-04-14
发明人： Loic Bernard Tanghe
IPC分类号： H04R005/00 , H03G007/00
CPC分类号： H04R3/00 , H04R3/04
摘要： The invention relates to an apparatus (1) for amplifying bass frequencies of an audio signal (AL, AR). The bass components are applied to a controllable amplifier (17). A comparison circuit (19) compares the signals from the output and the input of the amplifier (17). When the feed-forward signal has a larger level than the feedback signal, the bass power is decreased, or increased in the opposite case. Oscillation peak values are reduced with respect to time and frequency for flat loudspeakers.
摘要翻译：本发明涉及用于放大音频信号（AL，AR）的低音频率的装置（1）。低音分量被施加到可控放大器（17）。比较电路（19）比较来自放大器（17）的输出和输入的信号。当前馈信号具有比反馈信号更大的电平时，低音功率减小或相反的情况下增加。相对于平板扬声器的时间和频率，振荡峰值减小。

4. 发明申请

US20040202332A1 Sound-field setting system 审中-公开
标题翻译：声场设定系统
公开(公告)号：US20040202332A1
公开(公告)日：2004-10-14
申请号：US10799773
申请日：2004-03-15
发明人： Yoshihisa Murohashi , Toshitaka Abe , Hiroshi Kodama , Toshimitsu Uchiyama
IPC分类号： H04R005/00 , H03G003/00
CPC分类号： H04S7/301 , H04R2400/01 , H04S3/00 , H04S7/302 , H04S7/40
摘要： Loudspeakers of plural channels are used as microphones to convert a test sound generated at a listening point into corresponding electric signals respectively. Moments of arrival of the test sound at the loudspeakers are detected in response to the electric signals respectively. Desired delay times for audio signals of the plural channels are calculated from the detected moments of arrival of the test sound at the loudspeakers. Volume levels of the electric signals are detected. Desired volume levels for the audio signals are calculated from the detected volume levels. The audio signals are delayed by the desired delay times respectively and volume levels of the audio signals are controlled at the desired volume levels respectively to get processing-resultant audio signals of the plural channels. The processing-resultant audio signals are fed to the loudspeakers respectively.
摘要翻译：多个通道的扬声器被用作麦克风，以将在收听点处产生的测试声音分别转换成相应的电信号。响应于电信号分别检测测试声音到达扬声器的时刻。根据测试声音在扬声器处的到达时刻计算多个声道的音频信号的期望的延迟时间。检测电信号的音量。根据检测到的音量来计算音频信号的期望音量。音频信号分别延迟所需的延迟时间，并且分别将音频信号的音量电平控制在期望的音量级别以获得多个频道的处理结果音频信号。处理结果音频信号分别馈送到扬声器。

5. 发明申请

US20040175001A1 Circuit and program for processing multichannel audio signals and apparatus for reproducing same 有权
标题翻译：用于处理多声道音频信号的电路和程序以及用于再现其的装置
公开(公告)号：US20040175001A1
公开(公告)日：2004-09-09
申请号：US10786455
申请日：2004-02-24
申请人： PIONEER CORPORATION
发明人： Kei Sakagami , Shintaro Hosoi , Ikuko Kawamura
IPC分类号： H04R005/00
CPC分类号： H04S3/002 , H04S3/008 , H04S2420/01
摘要： A circuit for processing multichannel audio signals, comprises a frequency characteristics correction device and an output device. The frequency characteristics correction device corrects frequency characteristics of an audio signal of a channel including an audio signal component having a predetermined frequency band, of audio signals of a multichannel comprising at least a right channel and a left channel, in accordance with correction characteristics determined based on a head related transfer function. The output device mixes the audio signal component having the frequency characteristics corrected with an audio signal of the right channel and an audio signal of the left channel to generate mixed output audio signals, and outputting the mixed output audio signals as a right channel output audio signal and a left channel output audio signal.
摘要翻译：一种用于处理多声道音频信号的电路，包括频率特性校正装置和输出装置。频率特性校正装置根据基于确定的校正特性来校正包括具有预定频带的音频信号的频道的音频信号的频率特性，所述音频信号包括至少包括右声道和左声道的多声道的音频信号关于头相关传输功能。输出装置将具有校正的频率特性的音频信号分量与右声道的音频信号和左声道的音频信号混合，以产生混合输出音频信号，并输出混合输出音频信号作为右声道输出音频信号和左声道输出音频信号。

6. 发明申请

US20040161117A1 Method for at least two audio signals 审中-公开
标题翻译：至少两个音频信号的方法
公开(公告)号：US20040161117A1
公开(公告)日：2004-08-19
申请号：US10483865
申请日：2004-01-14
发明人： Roelof E Reusens , Jean-Christophe Lallemand , Raf Coomans , Sandrine Laurence Yael Resler
IPC分类号： H04R005/00 , H03G003/00
CPC分类号： H04R3/00
摘要： The invention relates to a method for at least two audio signals (A1, A2) each being impressed with a process function, particularly a transformation function. According to the invention, upper values (8) of a function-impressed audio signal (A3) are decreased after the function by a rate and subsequently all values (8, 9) of the partially decreased signal (A4) are increased.
摘要翻译：本发明涉及一种用于至少两个音频信号（A1，A2）的方法，每个音频信号都被加工过程功能，特别是变换功能。根据本发明，函数输入音频信号（A3）的高值（8）在函数之后以速率减小，随后部分降低的信号（A4）的所有值（8,9）都增加。

7. 发明申请

US20040136549A1 Effects and recording system 有权
标题翻译：效果和录音系统
公开(公告)号：US20040136549A1
公开(公告)日：2004-07-15
申请号：US10341684
申请日：2003-01-14
发明人： James D. Pennock , Peter Chaikin , Josh Kapp , John Hanson
IPC分类号： H04R005/00 , H03G003/00
CPC分类号： H04H60/04 , G10H1/02 , G11B27/031 , G11B27/034 , G11B27/34 , G11B2220/20 , G11B2220/90
摘要： An effects and recording system is provided which is capable of recording at least one of a received audio signal and a processed audio signal generated by the application of musical effects to the received audio signal. The audio signal may be captured from any device capable of producing an audio signal. The effects and recording system may provide various recording capabilities including auto track selection and arming, automatic signal routing, delayed recording initialization, automatic level setting and panning settings, editing capabilities, and the merging of recorded tracks. Additionally, the effects and recording system may provide various monitoring capabilities, including automatic level, panning, and/or effects or other filtering of signals recorded or monitored via the system, as well as an enhanced mix-down feature, and music mix-down type.
摘要翻译：提供一种效果和记录系统，其能够将接收到的音频信号和通过应用音乐效果产生的经处理的音频信号中的至少一个记录到所接收的音频信号。可以从能够产生音频信号的任何设备捕获音频信号。效果和记录系统可以提供各种记录功能，包括自动轨道选择和布防，自动信号路由，延迟记录初始化，自动电平设置和平移设置，编辑能力以及记录轨道的合并。此外，效果和记录系统可以提供各种监视功能，包括通过系统记录或监视的信号的自动电平，平移和/或效果或其他滤波，以及增强的混音特征和音乐混音类型。

8. 发明申请

US20040109570A1 System and method for selective signal cancellation for multiple-listener audio applications 审中-公开
标题翻译：用于多听众音频应用的选择性信号消除的系统和方法
公开(公告)号：US20040109570A1
公开(公告)日：2004-06-10
申请号：US10465237
申请日：2003-06-20
发明人： Sunil Bharitkar , Chris Kyriakakis
IPC分类号： H04R005/00 , H03G003/00
CPC分类号： H04R29/007 , H04R27/00 , H04S7/302
摘要： A system and method for producing an audio output directed to a listening environment having at least two listening positions. Based upon the location of a loudspeaker for the purpose of producing an audio output and the physical location of the listening positions, the audio output would be preprocessed by one or more filters whose coefficients would maximize the signal heard by a listener in one of the listening positions and constrained by a listener in another position, thereby eliminating or minimizing the audio output heard by a listener in one of the other positions.
摘要翻译：一种用于产生针对具有至少两个收听位置的收听环境的音频输出的系统和方法。基于用于产生音频输出和音频输出的物理位置的扬声器的位置，音频输出将被一个或多个滤波器预处理，其中系数将使听众中听到的信号最大化位置并由另一位置的收听者约束，从而消除或最小化听众在其他位置之一中听到的音频输出。

9. 发明申请

US20040105551A1 Audio signal processing apparatus 有权
公开(公告)号：US20040105551A1
公开(公告)日：2004-06-03
申请号：US10721159
申请日：2003-11-26
发明人： Norihiko Fuchigami , Shoji Ueno , Yoshiaki Tanaka
IPC分类号： H04R005/00
CPC分类号： G10L19/008 , G10L19/04 , H04B1/66 , H04S1/007
摘要： In an audio signal encoding apparatus, a first audio signal and a second audio signal are added into an addition-result signal. The first audio signal is subtracted from the second audio signal to generate a subtraction-result signal. A first difference signal is generated which represents a difference in the addition-result signal. A second difference signal is generated which represents a difference in the subtraction-result signal. A plurality of first predictors have different prediction characteristics respectively, and are responsive to the first difference signal for generating first different prediction signals for the first difference signal, respectively. A plurality of first subtracters operate for generating first prediction-error signals representing differences between the first difference signal and the first different prediction signals, respectively. A first minimum prediction-error signal representative of a smallest difference is selected from among the first prediction-error signals. A plurality of second predictors have different prediction characteristics respectively, and are responsive to the second difference signal for generating second different prediction signals for the second difference signal, respectively. A plurality of second subtracters operate for generating second prediction-error signals representing differences between the second difference signal and the second different prediction signals, respectively. A second minimum prediction-error signal representative of a smallest difference is selected from among the second prediction-error signals.

10. 发明申请

US20040096065A1 Voice-to-remaining audio (VRA) interactive center channel downmix 审中-公开
标题翻译：语音到剩余音频（VRA）交互式中心通道缩混
公开(公告)号：US20040096065A1
公开(公告)日：2004-05-20
申请号：US10713262
申请日：2003-11-17
发明人： Michael A. Vaudrey , William R. Saunders
IPC分类号： H04R005/00 , H04R005/02
CPC分类号： H04R3/005 , H04R25/407
摘要： A method for decoding an audio signal includes receiving a digital audio signal having a plurality of channels defined thereon, wherein one of the plurality of channels is a center channel and at least one of the other of said plurality of channels is a remaining audio channel; comparing the center channel with the at least one of the other of the plurality of channels to determine a ratio of the center channel to the other of the plurality of channels; and automatically adjusting the center channel and the at least one of the plurality of other channels when a predetermined value for the ratio is not met.
摘要翻译：用于解码音频信号的方法包括接收具有在其上定义的多个信道的数字音频信号，其中多个信道中的一个是中心信道，并且所述多个信道中的另一个信道中的至少一个是剩余音频信道; 将所述中心信道与所述多个信道中的另一个中的所述至少一个信道进行比较，以确定所述多个信道中的所述中心信道与所述另一个信道的比率; 以及当不满足所述比率的预定值时，自动调整所述多个其它通道中的所述中心通道和所述至少一个通道。

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