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公开(公告)号：EP2783523B1
公开(公告)日：2018-08-22
申请号：EP12723645.3
申请日：2012-05-22
申请人： Jacoti BVBA
CPC分类号： H04R3/00 , A61N1/36036 , H03G7/002 , H04R25/356 , H04R2225/67 , H04R2430/01
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公开(公告)号：EP2956937B1
公开(公告)日：2018-06-13
申请号：EP14723227.6
申请日：2014-03-27
申请人： Apple Inc.
发明人： BAUMGARTE, Frank M.
IPC分类号： G10L19/16 , G10L19/008 , H03G7/00
CPC分类号： G10L19/02 , G10L19/008 , G10L19/032 , G10L19/167 , H03G7/002 , H03G7/007
摘要： A system for encoding and applying Dynamic Range Control/Compression (DRC) gain values to a piece of sound program content is described. In particular, a set of DRC gain values representing a DRC gain curve for the piece of content may be divided into frames corresponding to frames of the piece of content. A set of fields may be included with an audio signal representing the piece of content. The additional fields may represent the DRC gain values using linear or spline interpolation. The additional fields may include 1) an initial gain value for each DRC frame, 2) a set of slope values at particular points in the DRC curve, 3) a set of time delta values for each consecutive pair of slope values, and/or 4) one or more gain delta values representing changes of DRC gain values in the DRC gain curve between points of the slope values.
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公开(公告)号：EP2995000B1
公开(公告)日：2017-03-29
申请号：EP14702018.4
申请日：2014-01-30
发明人： GROSCHE, Peter , LANG, Yue , ZHANG, Qing
IPC分类号： H03G7/00
摘要： A digital compressor for compressing an input audio signal is presented. The digital compressor comprises a compression gain control for providing a compression gain parameter, and a compression parameter determiner for determining a compression ratio from the compression gain parameter. The compression parameter determiner may be configured to weight the compression gain parameter by a predetermined weight factor to obtain the compression ratio. The digital compressor further comprises an auxiliary signal generator for manipulating the input audio signal in dependence of the compression ratio to obtain a first auxiliary signal, and a combiner unit for combining the first auxiliary signal with the compression gain parameter to obtain a second auxiliary signal, and for combining the input audio signal with the second auxiliary signal to obtain the compressed audio signal.
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公开(公告)号：EP3089161A1
公开(公告)日：2016-11-02
申请号：EP14873206.8
申请日：2014-12-12
申请人： Sony Corporation
发明人： YAMAMOTO Yuki , CHINEN Toru , HONMA Hiroyuki , SHI Runyu
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/26 , G10L21/034 , H03G7/002 , H03G7/007 , H03G9/00 , H03G9/005 , H03G11/008
摘要： The present technology relates to a decoding apparatus, a decoding method and a program which make it possible to obtain sound with higher quality.
A demultiplexing circuit demultiplexes an input code string into a gain code string and a signal code string. A signal decoding circuit decodes the signal code string to output a time series signal. A gain decoding circuit decodes the gain code string. That is, the gain decoding circuit reads out gain values and gain inclination values at predetermined gain sample positions of the time series signal and interpolation mode information. An interpolation processing unit obtains a gain value at each sample position between two gain sample positions through linear interpolation or non-linear interpolation according to the interpolation mode based on the gain values and the gain inclination values. A gain applying circuit adjusts a gain of the time series signal based on the gain values. The present technology can be applied to a decoding apparatus.摘要翻译： 本技术涉及使得可以获得更高质量的声音的解码装置，解码方法和程序。 解复用电路将输入码串解复用为增益码串和信号码串。 信号解码电路解码信号码串以输出时间序列信号。 增益解码电路解码增益代码串。 也就是说，增益解码电路在时间序列信号和插值模式信息的预定增益采样位置读出增益值和增益倾斜值。 内插处理单元根据基于增益值和增益倾斜值的内插模式，通过线性内插或非线性内插，在两个增益采样位置之间的各取样位置获取增益值。 增益应用电路根据增益值调整时间序列信号的增益。 本技术可以应用于解码装置。
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公开(公告)号：EP3038106A1
公开(公告)日：2016-06-29
申请号：EP14290401.0
申请日：2014-12-24
申请人： NXP B.V.
发明人： Donjon, Aurelie , Guillaume, Cyril
IPC分类号： G10L21/0364 , H03G7/00 , G10L21/0208 , G10L25/51
CPC分类号： G10L15/02 , G10L21/0208 , G10L21/0232 , G10L21/0364 , G10L25/51 , G10L2015/025 , H03G7/002 , H03G7/007 , H03G9/005 , H03G9/025 , H04W88/02
摘要： A wireless communication device is disclosed. The wireless communication device includes a processor, a memory, a transceiver configured to receive an audio signal, a codec to decode the audio signal, a dynamic range controller and a phoneme processor. The phoneme processor is configured to extract acoustic cues from each frame of the decoded audio signal and to identify a phoneme class in the each frame. The dynamic range controller is configured to apply dynamic range compression on the each frame based on the identified phoneme class.
摘要翻译： 公开了一种无线通信设备。 无线通信设备包括处理器，存储器，被配置为接收音频信号的收发器，解码音频信号的编解码器，动态范围控制器和音素处理器。 音素处理器被配置为从解码的音频信号的每个帧中提取声音提示并且识别每个帧中的音素类。 动态范围控制器被配置为基于所识别的音素类在每个帧上应用动态范围压缩。
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公开(公告)号：EP2394360B1
公开(公告)日：2015-07-08
申请号：EP10701291.6
申请日：2010-01-21
申请人： Bose Corporation
发明人： SHORT, William R.
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7.发明公开
公开(公告)号：EP2852057A1
公开(公告)日：2015-03-25
申请号：EP13185402.8
申请日：2013-09-20
申请人： NXP B.V.
CPC分类号： G08C23/02 , H03G3/3005 , H03G7/002
摘要： An audio and ultrasound signal processing circuit (412), comprising:
an audio input terminal (414) for receiving an input signal comprising an audio input signal;
an amplitude detector (430), configured to determine an amplitude of the input signal and provide an amplitude level signal (432);
a gain calculator (434) configured to determine an ultrasound amplification factor (436) in accordance with the amplitude level signal (432) and a target amplitude signal (418);
a variable ultrasound amplifier (438) configured to receive an ultrasound input signal and modulate an amplitude of the ultrasound input signal in accordance with the ultrasound amplification factor (436) in order to provide an amplified ultrasound signal; and
an output terminal (416) for providing an enhanced output signal comprising frequency components that correspond to the audio input signal and frequency components that correspond to the amplified ultrasound signal.摘要翻译： 一种音频和超声信号处理电路（412），包括：音频输入端（414），用于接收包括音频输入信号的输入信号; 振幅检测器（430），被配置为确定所述输入信号的幅度并提供振幅电平信号（432）; 增益计算器（434），被配置为根据所述振幅电平信号（432）和目标振幅信号（418）来确定超声放大因子（436）。 可变超声波放大器（438），被配置为接收超声波输入信号并且根据超声波放大因子（436）调制超声波输入信号的振幅，以便提供放大的超声信号; 以及输出端子（416），用于提供包括对应于音频输入信号的频率分量的增强输出信号和对应于放大的超声信号的频率分量。
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公开(公告)号：EP2819303A1
公开(公告)日：2014-12-31
申请号：EP13751157.2
申请日：2013-02-06
申请人： YAMAHA Corporation
发明人： YAMADA Morito
CPC分类号： H03F1/0222 , H03F1/0244 , H03F1/025 , H03F1/305 , H03F3/183 , H03F3/21 , H03F2200/03 , H03F2200/504 , H03F2200/507 , H03F2200/511 , H03G7/002 , H03G7/007
摘要： An audio amplifier is provided with: an amplifier circuit; a power supply circuit that generates a plurality of power supply voltages; a power supply relay that selects one of the power supply voltages as the power supply voltage supplied to the amplifier circuit; a switching condition determiner that determines whether the switching condition of the power supply relay is satisfied; a silent section detector that detects a silent section of the audio signal which is equal to or greater than the operation time of the power supply relay; and a switching instruction unit for providing the power supply relay with an instruction for switching the power supply voltage during the silent section when the switching condition is satisfied and the silent section is detected.
摘要翻译： 音频放大器具有：放大器电路; 产生多个电源电压的电源电路; 电源继电器，其选择所述电源电压中的一个电源电压作为供应给所述放大器电路的电源电压; 切换条件确定器，确定电源继电器的切换条件是否被满足; 静音部分检测器，其检测等于或大于电源继电器的操作时间的音频信号的静音部分; 以及开关指令单元，用于当切换条件满足并且检测到无声部分时，向电源继电器提供用于在无声部分期间切换电源电压的指令。
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9.发明授权ACOUSTIC PROCESSING SYSTEM AND METHOD FOR ELECTRONIC DEVICE AND MOBILE TELEPHONE TERMINAL 有权声音处理系统和方法的电子设备及移动终端
公开(公告)号：EP2139264B1
公开(公告)日：2014-10-08
申请号：EP08712099.4
申请日：2008-02-28
申请人： NEC Corporation
发明人： KURODA, Jun , HOSOKAWA, Satoshi , MORI, Ukyo
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