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31.发明公开Apparatus and method for controlling speakers 审中-公开Anordnung und Verfahren zur Lautsprechersteuerung
公开(公告)号：EP1507439A3
公开(公告)日：2006-04-05
申请号：EP04015693.7
申请日：2004-07-03
CPC分类号： H04S7/30 , G01S5/18 , H03G5/22 , H04R29/007 , H04R2205/024 , H04S3/00 , H04S7/301 , H04S2400/09
摘要： An apparatus and method are provided for controlling a plurality of speakers, comprising an amplifier for amplifying and outputting a play signal to be played over the speakers; and at least one sensor disposed proximal to at least one of the speakers for sensing at least one environmental condition and outputting sensing data to a controller, wherein the controller adjusts the play signal to compensate for environmental changes based on the sensing data.
摘要翻译： 提供了一种用于控制多个扬声器的装置和方法，包括用于放大并输出要在扬声器上播放的播放信号的放大器; 以及至少一个传感器，其布置在所述扬声器中的至少一个扬声器附近，用于感测至少一个环境条件并将感测数据输出到控制器，其中所述控制器基于所述感测数据调整所述播放信号以补偿环境变化。
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32.发明公开ELECTRICAL IMPEDANCE BASED AUDIO COMPENSATION IN AUDIO DEVICES AND METHODS THEREFOR 审中-公开音频补偿基电阻抗，视听设备和配套程序THEREFOR
公开(公告)号：EP1552608A2
公开(公告)日：2005-07-13
申请号：EP03771740.2
申请日：2003-07-22
摘要： An audio device, for example a wireless communications handset, including a sound transducer (410) coupled to a compensated audio signal output of an audio compensator (450), a mismatch detection circuit (430) having a first input coupled to the compensated audio signal output of the audio compensator (450), the mismatch detection circuit (430) having a second input coupled to the sound transducer (410), the mismatch detecting circuit having an output corresponding to a mismatch between a reference electrical impedance of the sound transducer and an actual electrical impedance of the sound transducer, a compensation estimator (440) having an input coupled to the output of the mismatch detection circuit, the compensation estimator having an audio compensation output coupled to a compensation input of the audio compensator.
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33.发明公开Audio apparatus of negative impedance driving with adaptive gain control 有权Audiovorrichtung mit negativer Impedanztreiberschaltung und adaptorVerstärkungsregelung
公开(公告)号：EP1014571A3
公开(公告)日：2004-08-25
申请号：EP99125664.5
申请日：1999-12-22
申请人： YAMAHA CORPORATION
IPC分类号： H03G5/22
摘要： An audio apparatus is constructed for use in negative drive of a loudspeaker having an internal impedance to perform a desired amplitude-frequency characteristic. In the audio apparatus, an amplifier device drives the loudspeaker with a driving voltage. A feedback device performs a positive feedback of a signal corresponding to the driving voltage of the loudspeaker to the amplifier device with a variable feedback gain, thereby causing the amplifier device to generate a negative impedance effective to negate the internal impedance of the loudspeaker. An adjustment device decreases the variable feedback gain of the feedback device as a level of the driving voltage of the loudspeaker increases, thereby adjusting the amplitude-frequency characteristic of the amplifier device.
摘要翻译： 音频装置被构造用于具有内部阻抗的扬声器的负驱动以执行期望的幅频特性。 在音频装置中，放大器装置以驱动电压驱动扬声器。 反馈装置以可变的反馈增益对放大器装置执行对应于扬声器的驱动电压的信号的正反馈，从而使得放大器装置产生有效的负阻抗以消除扬声器的内部阻抗。 当扬声器的驱动电压的电平增加时，调节装置减小反馈装置的可变反馈增益，从而调整放大器装置的幅频特性。
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公开(公告)号：EP1241921A2
公开(公告)日：2002-09-18
申请号：EP02251184.4
申请日：2002-02-21
申请人： Adphox Corporation
发明人： Narusawa, Hitoshi
IPC分类号： H04R25/00
CPC分类号： H03G5/22 , G10L21/0364 , G10L25/15 , H04R25/505 , H04R2225/43
摘要： The present invention relates to an acoustic signal processor, and provides a device which allows processing of acoustic signals such that acoustic information can be easily heard and accurately understood by individuals with or without hearing impairment. The acoustic signal processor comprises a peak detection circuit group (4) for determining a frequency band having the highest energy level out of the frequency bands constituting the inputted acoustic signals, and a variable equalizer(7) which maintains the energy level roughly at a constant level for the frequency bands lower than the frequency band determined by peak detection circuit group (4), and increases the amplification degree of the energy level as the frequency increases for the frequency bands higher than the frequency band determined by the peak detection circuit group(4)
摘要翻译： 声信号处理器技术领域本发明涉及一种声信号处理器，并且提供一种允许处理声信号的装置，使得可以容易地听到声学信息并且有或没有听力损伤的个人准确地理解声信息。 声信号处理器包括：峰值检测电路组（4），用于确定构成输入的声信号的频带中具有最高能级的频带;以及可变均衡器（7），其将能级大致维持在恒定值 对于由峰值检测电路组（4）确定的频带以下的频带的电平，并且随着高于由峰值检测电路组确定的频带的频带的频率增加而增加能级的放大度（ 4）
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35.发明公开Digital self-adapting graphic equalizer and method 审中-公开数码师selbst-adaptiver graphischer Entzerrer undzugehörigesVerfahren
公开(公告)号：EP1109421A2
公开(公告)日：2001-06-20
申请号：EP00310886.7
申请日：2000-12-07
摘要： A self-adaptive graphic equalizer 30 operable to equalize the effects of an audio system on an audio signal includes an adaptive graphic equalizer 34 having a plurality of equalizing filters 38, 40, where the plurality of equalizing filters have different center frequencies equidistant from one another and spanning a predetermined audio bandwidth. Each equalizing filter 38, 40 is operable to filter an i th sub-band of the audio signal. A plurality of first filters are coupled to the audio system, each first filter is operable to filter an i th sub-band of an output signal of the audio system. A plurality of second filters are operable to filter an i th sub-band of the audio signal. A gain adjuster 42 is operable to adjust the i th sub-band of the adaptive graphic equalizer in response to a difference in the i th sub-band of the filtered output signal from the plurality of first filters and the i th sub-band of the filtered audio signal from the plurality of second filters.
摘要翻译： 用于均衡音频系统对音频信号的影响的自适应图形均衡器30包括具有多个均衡滤波器38,40的自适应图形均衡器34，其中多个均衡滤波器具有彼此等距的不同的中心频率 并跨越预定的音频带宽。 每个均衡滤波器38,40可操作以对音频信号的第i个子带进行滤波。 多个第一滤波器耦合到音频系统，每个第一滤波器可操作以对音频系统的输出信号的第i个子带进行滤波。 多个第二滤波器可操作以对音频信号的第i个子带进行滤波。 增益调节器42可操作以响应于来自多个第一滤波器的经滤波的输出信号的第i个子带和第一第一子带的第i个子带的差异来调整自适应图形均衡器的第i个子带 来自多个第二滤波器的滤波后的音频信号。
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36.发明公开
公开(公告)号：EP1014571A2
公开(公告)日：2000-06-28
申请号：EP99125664.5
申请日：1999-12-22
申请人： YAMAHA CORPORATION
IPC分类号： H03G5/22
摘要： An audio apparatus is constructed for use in negative drive of a loudspeaker having an internal impedance to perform a desired amplitude-frequency characteristic. In the audio apparatus, an amplifier device drives the loudspeaker with a driving voltage. A feedback device performs a positive feedback of a signal corresponding to the driving voltage of the loudspeaker to the amplifier device with a variable feedback gain, thereby causing the amplifier device to generate a negative impedance effective to negate the internal impedance of the loudspeaker. An adjustment device decreases the variable feedback gain of the feedback device as a level of the driving voltage of the loudspeaker increases, thereby adjusting the amplitude-frequency characteristic of the amplifier device.
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公开(公告)号：EP0583492B1
公开(公告)日：1998-11-25
申请号：EP92113605.7
申请日：1992-08-10
申请人： APHEX SYSTEMS, LTD.
发明人： Werrbach, Donn R.
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38.发明公开Audio signal bass frequency enhancement device 失效Verfahren zur Anhebung der Bassfrequenzwiedergabe eine Audiosignals。
公开(公告)号：EP0583492A1
公开(公告)日：1994-02-23
申请号：EP92113605.7
申请日：1992-08-10
申请人： APHEX SYSTEMS, LTD.
发明人： Werrbach, Donn R.
摘要： A device for enhancing the bass frequency components in an audio signal while avoiding overload problems associated with fixed levels of bass frequency enhancement. The device divides the input signal into two parts, the first of which passes through to the output of the device. The second part of the input signal is input into a low pass filter (2) which passes only the bass components of the input signal and imparts a frequency dependent phase shift to the bass components. The bass components then pass through a variable gain amplifier (3) which may or may not invert the polarity of the bass components and then are recombined with the first part of the audio signal. The gain of the variable gain amplifier (3) is varied in accord with the level of the bass components so as to provide substantially the same output level over a wide range of input levels. As a consequence the device provides greater enhancement of the bass frequencies when they are at lower levels and less enhancement when the bass frequencies are at higher levels, thereby reducing the likelihood of overloading any subsequent audio signal amplifiers. The enhancement is the result of a dynamically changing frequency response and increased duration of the bass frequencies.
摘要翻译： 一种用于增强音频信号中的低音频率分量的装置，同时避免与固定的低音频率增强水平相关联的过载问题。 该设备将输入信号分为两部分，第一部分通过设备的输出。 输入信号的第二部分被输入到低通滤波器（2），低通滤波器（2）仅通过输入信号的低音分量，并向低音分量施加与频率相关的相移。 然后，低音分量通过可变增益放大器（3），可变增益放大器（3）可以反转或不反转低音分量的极性，然后与音频信号的第一部分重新组合。 可变增益放大器（3）的增益根据低音分量的电平而变化，从而在宽范围的输入电平上提供基本相同的输出电平。 因此，当低音频率处于较高电平时，该装置在较低电平时提供低音频率的较大增强，并且在低音频率处于较高电平时提供较小增强，由此降低任何后续音频信号放大器的过载的可能性。 增强是动态变化的频率响应和增加低音频率的持续时间的结果。
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公开(公告)号：EP1665524B1
公开(公告)日：2011-11-23
申请号：EP04779547.1
申请日：2004-07-29
摘要： Audio processing methods and apparatus are provided for at least partially compensating for the Fletcher-Munson effect. An audio processor includes a variable filter receiving an input signal and providing a filtered output signal, the variable filter having a fixed cutoff frequency and a quality factor that is controllable in response to a control signal, and a control circuit configured to detect a signal level representative of input signal level in a selected band and to generate the control signal in response to the detected signal level. The control circuit may include a low-pass band select filter and a detector for detecting a signal level in the band selected by the low-pass filter and for generating the control signal.
摘要翻译： 提供音频处理方法和设备，用于至少部分地补偿弗莱彻 - 曼森效应。 一种音频处理器包括：可变滤波器，接收输入信号并提供经滤波的输出信号，所述可变滤波器具有固定的截止频率和响应于控制信号可控的品质因数;以及控制电路，配置为检测信号电平 代表所选频带中的输入信号电平，并响应于检测到的信号电平产生控制信号。 控制电路可以包括低通带选择滤波器和检测器，用于检测由低通滤波器选择的频带中的信号电平并且用于生成控制信号。
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40.发明公开ELECTRICAL IMPEDANCE BASED AUDIO COMPENSATION IN AUDIO DEVICES AND METHODS THEREFOR 审中-公开音频补偿基电阻抗，视听设备和配套程序THEREFOR
公开(公告)号：EP1552608A4
公开(公告)日：2007-06-06
申请号：EP03771740
申请日：2003-07-22
申请人： MOTOROLA INC
摘要： An audio device, for example a wireless communications handset, including a sound transducer (410) coupled to a compensated audio signal output of an audio compensator (450), a mismatch detection circuit (430) having a first input coupled to the compensated audio signal output of the audio compensator (450), the mismatch detection circuit (430) having a second input coupled to the sound transducer (410), the mismatch detecting circuit having an output corresponding to a mismatch between a reference electrical impedance of the sound transducer and an actual electrical impedance of the sound transducer, a compensation estimator (440) having an input coupled to the output of the mismatch detection circuit, the compensation estimator having an audio compensation output coupled to a compensation input of the audio compensator.
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