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    • 12. 发明申请
    • 音声マスキングのための方法、装置およびプログラム
    • 语音掩蔽的方法,设备和程序
    • WO2014050842A1
    • 2014-04-03
    • PCT/JP2013/075806
    • 2013-09-25
    • ヤマハ株式会社
    • 鵜飼 訓史山川 高史
    • G10K11/178
    • G10K11/175H04K3/42H04K3/43H04K3/45H04K3/825H04K3/94H04K2203/12
    •  モデル音指標値算出手段(123)は所定の算出式に従いターゲット音のモデルとなるモデル音の周波数帯域毎のパワーの最大値の指標値であるモデル音指標値を算出する。ソース音指標値算出手段(124)は所定の算出式に従いマスカー音信号の生成に用いられるソース音信号から所定の時間長で取り出されたフレームの各々に関し周波数帯域毎のパワーの指標値であるソース音指標値を算出する。マスキング性能算出手段(125)はモデル音指標値およびソース音指標値を用いて、ソース音信号から連続して取り出された所定数のフレームで形成されるブロックが表す音がモデル音をマスキングする性能の指標値である性能指標値を算出する。フレーム選択手段(126)は性能指標値に基づきマスカー音信号の生成に用いるブロックを決定する。
    • 模型声音指标值计算装置(123)根据规定的计算公式,计算作为模型声音中的每个频带的功率的最大值的指标值的模型声音指标值,其形成用于 一个目标声音。 源声音值计算装置(124)根据规定的计算公式计算源声音指数值,该声源索引值是与从每个帧提取的每个帧相关的每个频带的功率的指标值, 源声音信号用于产生掩蔽声音信号。 屏蔽性能计算装置(125)使用模型索引值计算性能指标值,该性能指标值是通过由源声音信号连续提取的规定帧形成的块所表示的声音来掩蔽模型声音的指标值 和声源索引值。 帧选择装置(126)基于性能指标值确定在产生掩蔽声音信号中使用的块。
    • 14. 发明申请
    • 오디오 신호 처리 장치 및 방법
    • 用于处理音频信号的装置和方法
    • WO2014021587A1
    • 2014-02-06
    • PCT/KR2013/006730
    • 2013-07-26
    • 인텔렉추얼디스커버리 주식회사
    • 오현오
    • G10L19/00H04N21/439
    • G10K11/175G10L19/008G10L21/0264H04N21/439H04N21/8106H04S3/008H04S3/02
    • 본 발명은 오디오 신호 처리 방법 및 장치에 관한 것으로서, 보다 구체적으로, 디지털 매체 또는 방송, 통신 신호를 통해 수신한 두 채널 이상의 오디오 신호에 대해 확장된 형태의 합과 차신호를 이용하여 오디오 신호를 디코딩하는 방법 및 장치에 관한 것이다. 본 발명에 따르면 적어도 두 채널의 오디오신호를 부호화하는 방법에 있어서, 제1오디오신호 및 제2오디오신호를 입력받는 단계, 상기 제1오디오신호와 상기 제2오디오신호에 대한 상관도를 구하는 단계, 상기 상관도가 기준값 이상인지 여부를 판단하는 단계, 상기 판단 결과가 참인 경우, 상기 제1오디오신호와 상기 제2오디오신호를 이용하여 제1게인값과 제2게인값을 산출하는 단계, 및 상기 제1오디오신호, 제2오디오신호, 제1게인값, 제2게입값을 이용하여 제1전송오디오신호와 제2전송오디오신호를 생성하는 단계를 포함하고, 상기 제1전송오디오신호와 상기 제2전송오디오신호는 지각 부호화 기법에 의해 부호화하는 오디오 신호 처리 방법이 제공될 수 있다.
    • 本发明涉及一种用于处理音频信号的方法和装置,更具体地说,涉及一种通过使用相对于所接收的两个或多个频道的音频信号的扩展形式的加法和减法信号对音频信号进行解码的方法和装置 通过通信信号。 根据本发明的用于编码至少两个声道的音频信号的方法包括以下步骤:接收第一音频信号和第二音频信号; 获得所述第一音频信号和所述第二音频信号之间的相关性; 确定所述相关性是否等于或大于参考值; 如果确定结果为真,则通过使用第一音频信号和第二音频信号来计算第一增益值和第二增益值; 以及通过使用第一音频信号,第二音频信号,第一增益值和第二增益值产生第一传输音频信号和第二传输音频信号,其中第一传输音频信号和第二传输音频信号由 使用感知编码技术。
    • 15. 发明申请
    • COORDINATED CONTROL OF ADAPTIVE NOISE CANCELLATION (ANC) AMONG EARSPEAKER CHANNELS
    • 自适应噪声消除(ANC)协调控制在扬声器通道
    • WO2013162831A2
    • 2013-10-31
    • PCT/US2013/034808
    • 2013-04-01
    • CIRRUS LOGIC, INC.
    • HENDRIX, Jon, D.ALDERSON, Jeffrey
    • G10K11/178
    • H04R3/002G10K11/175G10K11/178G10K2210/1081G10K2210/30391G10K2210/3055G10K2210/503
    • A personal audio device including earspeakers, includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal for each earspeaker from at least one microphone signal that measures the ambient audio, and the anti-noise signals are combined with source audio to provide outputs for the earspeakers. The anti-noise signals cause cancellation of ambient audio sounds at the respective earspeakers. A processing circuit uses the microphone signal(s) to generate the anti-noise signals, which can be generated by adaptive filters. The processing circuit controls adaptation of the adaptive filters such that when an event requiring action on the adaptation of one of the adaptive filters is detected, action is taken on the other one of the adaptive filters. Another feature of the ANC system uses microphone signals provided at both of the earspeakers to perform processing on a voice microphone signal that receives speech of the user.
    • 包括耳式扬声器的个人音频设备包括自适应噪声消除(ANC)电路,其自适应地从测量环境音频的至少一个麦克风信号为每个耳塞产生抗噪声信号,并且抗噪声信号与源音频 为耳机提供输出。 抗噪声信号会引起相应耳机扬声器环境声音的消除。 处理电路使用麦克风信号来产生可由自适应滤波器产生的抗噪声信号。 处理电路控制自适应滤波器的自适应,使得当检测到需要对自适应滤波器之一的自适应的动作的事件时,对另一个自适应滤波器采取动作。 ANC系统的另一个特征是使用在两个耳机中提供的麦克风信号对接收用户语音的语音麦克风信号进行处理。
    • 17. 发明申请
    • METHOD AND SYSTEM FOR CONTROLLING NOISE LEVEL IN AN AUTOMOTIVE ELECTRONIC DEVICE
    • 用于控制汽车电子设备噪声水平的方法和系统
    • WO2013030729A2
    • 2013-03-07
    • PCT/IB2012/054267
    • 2012-08-23
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.SHEN, Fangzhong
    • SHEN, Fangzhong
    • G10K11/175
    • G10K11/175B60H2001/006H04K3/224H04K2203/12H04K2203/22
    • The invention generally relates to a method for controlling noise level made by a device in an automobile. The method includes: detecting (210, 310) an ambient noise level in the automotive; and controlling (230,240;320,330,340) the working status of the device in an automotive such that the noise level generated by the device is lower than the ambient noise level by a predefined value. The invention also generally relates to a system for controlling for controlling noise level made by a device in an automobile. The system includes a detector (120) for detecting an ambient noise level in the automotive; and a controller (130) for controlling the working status of the device such that the noise level generated by the air purifier is lower than the ambient noise level by a predefined value. Thus, some annoying noise can be effectively masked.
    • 本发明一般涉及一种用于控制由汽车中的装置产生的噪声水平的方法。 该方法包括:检测(210,310)汽车中的环境噪声水平; 以及控制(230,240; 320,330,340)所述设备在汽车中的工作状态,使得由所述设备产生的噪声水平低于环境噪声水平预定值。 本发明还通常涉及一种用于控制汽车中的装置所产生的噪声水平的系统。 该系统包括用于检测汽车中的环境噪声水平的检测器(120) 以及控制器(130),用于控制设备的工作状态,使得由空气净化器产生的噪声水平低于环境噪声水平预定值。 因此,可以有效地掩盖一些恼人的噪音。
    • 20. 发明申请
    • ACTIVE NOISE CANCELLATION DECISIONS IN A PORTABLE AUDIO DEVICE
    • 主动噪声消除决定在便携式音频设备
    • WO2011153165A2
    • 2011-12-08
    • PCT/US2011/038617
    • 2011-05-31
    • APPLE INC.NICHOLSON, Guy, C.
    • NICHOLSON, Guy, C.
    • G10K11/16
    • G10K11/175G10K11/17833G10K2210/1081G10K2210/3026
    • Active noise cancellation (ANC) circuitry is coupled to the input of an earpiece speaker in a portable audio device, to control the ambient acoustic noise outside of the device and that may be heard by a user of the device. A microphone is to pickup sound emitted from the earpiece speaker, as well as the ambient acoustic noise. Control circuitry deactivates the ANC in response to determining that an estimate of how much sound emitted from the earpiece speaker has been corrupted by noise indicates insufficient corruption by noise. In another embodiment, the ANC decision is in response to determining that an estimate of the ambient noise level is greater than a threshold level of an audio artifact that could be induced by the ANC. Other embodiments are also described and claimed.
    • 有源噪声消除(ANC)电路耦合到便携式音频设备中的耳机扬声器的输入端,以控制设备外部的环境声学噪声,并且该设备的用户可能会听到。 麦克风是用于拾取从耳机扬声器发出的声音以及环境噪声。 响应于确定从耳机扬声器发射的声音已经被噪声破坏的响应,控制电路使ANC取消激活,表明噪声不足。 在另一个实施例中,ANC决定是响应于确定环境噪声电平的估计大于可能由ANC引起的音频伪像的阈值水平。 还描述和要求保护其他实施例。