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1. 发明申请

WO2011017124A2 M-S STEREO REPRODUCTION AT A DEVICE 审中-公开
标题翻译： M-S立体声再现在设备上
公开(公告)号：WO2011017124A2
公开(公告)日：2011-02-10
申请号：PCT/US2010/043435
申请日：2010-07-27
申请人： QUALCOMM INCORPORATED , XIANG, Pei , HEIMBIGNER, Wade L.
发明人： XIANG, Pei , HEIMBIGNER, Wade L.
IPC分类号： H04S5/00
CPC分类号： H04S5/00 , H04R2499/11 , H04S1/002 , H04S1/007
摘要： Mid-side (M-S) encoded audio is reproduced by a device that includes a multi-channel digital-to-analog converter (DAC). The DAC has a first channel input receiving a digitized mid audio signal, a first channel output providing an analog mid audio signal, a second channel input receiving a digitized side audio signal and a second channel output providing an analog side audio signal. The DAC may also include a third channel for receiving a digitized second side audio signal. The second side audio signal is phase inverted. The device may be a handheld wireless communication device, such as a cellular phone, and may also include transducers for outputting M-S encoded sound in response to the analog mid and side audio signals.
摘要翻译：中端（M-S）编码音频由包括多通道数/模转换器（DAC）的装置再现。 DAC具有接收数字化中音频信号的第一声道输入，提供模拟中音频信号的第一声道输出，接收数字化侧音频信号的第二声道输入和提供模拟侧音频信号的第二声道输出。 DAC还可以包括用于接收数字化的第二侧音频信号的第三通道。第二侧音频信号是相位反相的。该设备可以是诸如蜂窝电话的手持无线通信设备，并且还可以包括用于响应于模拟中间和侧面音频信号而输出M-S编码声音的换能器。

2. 发明申请

WO2008134689A1 AUTOMATIC VOLUME AND DYNAMIC RANGE ADJUSTMENT FOR MOBILE AUDIO DEVICES 审中-公开
标题翻译：自动音量和动态范围调整移动音频设备
公开(公告)号：WO2008134689A1
公开(公告)日：2008-11-06
申请号：PCT/US2008/061947
申请日：2008-04-30
申请人： QUALCOMM Incorporated , XIANG, Pei , WANG, Song , KULKARNI, Prajakt V , GUPTA, Samir Kumar , CHOY, Eddie L.t.
发明人： XIANG, Pei , WANG, Song , KULKARNI, Prajakt V , GUPTA, Samir Kumar , CHOY, Eddie L.t.
IPC分类号： H03G3/32 , H04M1/60
CPC分类号： H03G7/007 , H03G3/32 , H04M1/6016
摘要： A mobile audio device (for example, a cellular telephone, personal digital audio player, or MP3 player) performs Audio Dynamic Range Control (ADRC) (125) and Automatic Volume Control (AVC) (126) to increase the volume of sound (127) emitted from a speaker of' the mobile audio device so that faint passages of the audio will be more audible. This amplification of faint passages occurs without overly amplifying other louder passages, and without substantial distortion due to clipping. Multi-Microphone Active Noise Cancellation (MMANC) (133) functionality is, for example, used to remove background noise from audio information picked up on microphones of the mobile audio device. The noise-canceled audio may then be communicated from the device. The MMANC functionality generates a noise reference signal as an intermediate signal. The intermediate signal is conditioned and then used as a reference by the AVC process. The gain applied during the AVC process is a function of the noise reference signal.
摘要翻译：移动音频设备（例如，蜂窝电话，个人数字音频播放器或MP3播放器）执行音频动态范围控制（ADRC）（125）和自动音量控制（AVC）（126）以增加声音音量（127 ）从“移动音频设备”的扬声器发出，使得音频的微弱通道更可听见。这种微弱通道的放大发生，而不会过度放大其他更大的通道，并且没有由于限幅导致的实质性变形。例如，多麦克风有源噪声消除（MMANC）（133）功能用于从移动音频设备的麦克风拾取的音频信息中去除背景噪声。然后可以从设备传送噪声消除的音频。 MMANC功能产生噪声参考信号作为中间信号。中间信号被调节，然后用作AVC处理的参考。在AVC过程中应用的增益是噪声参考信号的函数。

3. 发明申请

WO2012138435A1 INTEGRATED PSYCHOACOUSTIC BASS ENHANCEMENT (PBE) FOR IMPROVED AUDIO 审中-公开
标题翻译：用于改进音频的集成心理增强增强（PBE）
公开(公告)号：WO2012138435A1
公开(公告)日：2012-10-11
申请号：PCT/US2012/026992
申请日：2012-02-28
申请人： QUALCOMM INCORPORATED , LI, Ren , XIANG, Pei
发明人： LI, Ren , XIANG, Pei
IPC分类号： H04R1/10 , G10L21/02
CPC分类号： H04R1/1083 , G10L21/0208 , H04R2460/01
摘要： Psychoacoustic Bass Enhancement (PBE) is integrated with one or more other audio processing techniques, such as active noise cancellation (ANC), and/or receive voice enhancement (RVE), leveraging each technique to achieve improved audio output. This approach can be advantageous for improving the performance of headset speakers, which often lack adequate low-frequency response to effectively support ANC.
摘要翻译：心理声音低音增强（PBE）与一种或多种其他音频处理技术（例如主动噪声消除（ANC））和/或接收语音增强（RVE）集成，利用每种技术来实现改进的音频输出。这种方法对于提高耳机扬声器的性能是有利的，耳机扬声器通常缺乏足够的低频响应以有效地支持ANC。

4. 发明申请

WO2012015843A1 SYSTEMS, METHODS, AND APPARATUS FOR ENHANCED CREATION OF AN ACOUSTIC IMAGE SPACE 审中-公开
标题翻译：声学图像空间增强的系统，方法和装置
公开(公告)号：WO2012015843A1
公开(公告)日：2012-02-02
申请号：PCT/US2011/045418
申请日：2011-07-26
申请人： QUALCOMM INCORPORATED , VISSER, Erik , XIANG, Pei
发明人： VISSER, Erik , XIANG, Pei
IPC分类号： H04R3/12 , H04S7/00
CPC分类号： H04R3/12 , H04R2201/405 , H04R2430/20 , H04R2499/11 , H04S7/303
摘要： Methods, systems, and apparatus for using a psychoacoustic-bass-enhanced signal to drive an array of loudspeakers are disclosed.
摘要翻译：公开了使用心理声学低音增强信号来驱动扬声器阵列的方法，系统和装置。

5. 发明申请

WO2009070699A1 METHODS AND APPARATUS FOR PROVIDING AN INTERFACE TO A PROCESSING ENGINE THAT UTILIZES INTELLIGENT AUDIO MIXING TECHNIQUES 审中-公开
标题翻译：为使用智能音频混合技术的处理机提供界面的方法和装置
公开(公告)号：WO2009070699A1
公开(公告)日：2009-06-04
申请号：PCT/US2008/084903
申请日：2008-11-26
申请人： QUALCOMM INCORPORATED , XIANG, Pei , GUPTA, Samir Kumar , CHOY, Eddie L. T. , KULKARNI, Prajakt V.
发明人： XIANG, Pei , GUPTA, Samir Kumar , CHOY, Eddie L. T. , KULKARNI, Prajakt V.
IPC分类号： H04S7/00
CPC分类号： H04S7/30 , H04R2499/11 , H04S7/302 , H04S2400/11
摘要： A method for providing an interface to a processing engine that utilizes intelligent audio mixing techniques may include receiving a request to change a perceptual location of an audio source within an audio mixture from a current perceptual location relative to a listener to a new perceptual location relative to the listener. The audio mixture may include at least two audio sources. The method may also include generating one or more control signals that are configured to cause the processing engine to change the perceptual location of the audio source from the current perceptual location to the new perceptual location via separate foreground processing and background processing. The method may also include providing the one or more control signals to the processing engine.
摘要翻译：用于向使用智能音频混合技术的处理引擎提供接口的方法可以包括接收将音频混合内的音频源的感知位置从相对于收听者的当前感知位置改变为相对于听觉位置的新感知位置的请求听众。音频混合可以包括至少两个音频源。该方法还可以包括生成一个或多个控制信号，该控制信号被配置为使得处理引擎通过分离的前景处理和后台处理将音频源的感知位置从当前的感知位置改变到新的感知位置。该方法还可以包括向处理引擎提供一个或多个控制信号。

6. 发明申请

WO2012170128A1 GENERATING A MASKING SIGNAL ON AN ELECTRONIC DEVICE 审中-公开
标题翻译：在电子设备上产生屏蔽信号
公开(公告)号：WO2012170128A1
公开(公告)日：2012-12-13
申请号：PCT/US2012/036393
申请日：2012-05-03
申请人： QUALCOMM INCORPORATED , XIANG, Pei , HUANG, Joseph Jyh-huei , SCHEVCIW, Andre Gustavo Pucci , MAURO, Anthony P. , VISSER, Erik
发明人： XIANG, Pei , HUANG, Joseph Jyh-huei , SCHEVCIW, Andre Gustavo Pucci , MAURO, Anthony P. , VISSER, Erik
IPC分类号： H04R3/00 , H04K1/02 , G10L21/00
CPC分类号： H04R3/005 , H04K1/02 , H04K3/43 , H04K3/45 , H04K3/825 , H04K2203/12 , H04M9/08 , H04R1/323 , H04R3/12 , H04R2430/01 , H04R2499/11
摘要： An electronic device for generating a masking signal is described. The electronic device includes a plurality of microphones and a speaker. The electronic device also includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a plurality of audio signals from the plurality of microphones. The electronic device also obtains an ambience signal based on the plurality of audio signals. The electronic device further determines an ambience feature based on the ambience signal. Additionally, the electronic device obtains a voice signal based on the plurality of audio signals. The electronic device also determines a voice feature based on the voice signal. The electronic device additionally generates a masking signal based on the voice feature and the ambience feature. The electronic device further outputs the masking signal using the speaker.
摘要翻译：描述用于产生掩蔽信号的电子设备。电子设备包括多个麦克风和扬声器。电子设备还包括处理器和存储在与处理器电子通信的存储器中的可执行指令。电子设备从多个麦克风获得多个音频信号。电子设备还基于多个音频信号获得环境信号。电子设备还基于环境信号进一步确定环境特征。此外，电子设备基于多个音频信号获得语音信号。电子设备还基于语音信号确定语音特征。电子设备还基于语音特征和环境特征产生掩蔽信号。电子设备还使用扬声器输出屏蔽信号。

7. 发明申请

WO2012158340A1 BLIND SOURCE SEPARATION BASED SPATIAL FILTERING 审中-公开
标题翻译：基于盲源分离的空间滤波
公开(公告)号：WO2012158340A1
公开(公告)日：2012-11-22
申请号：PCT/US2012/035999
申请日：2012-05-01
申请人： QUALCOMM INCORPORATED , VISSER, Erik , KIM, Lae-Hoon , XIANG, Pei
发明人： VISSER, Erik , KIM, Lae-Hoon , XIANG, Pei
IPC分类号： H04S1/00 , H04S7/00
CPC分类号： H04S1/007 , H04S7/301 , H04S7/303 , H04S2420/01
摘要： A method for blind source separation based spatial filtering on an electronic device includes obtaining a first source audio signal and a second source audio signal. The method also includes applying a blind source separation filter set to the first source audio signal and to the second source audio signal to produce a spatially filtered first audio signal and a spatially filtered second audio signal. The method further includes playing the spatially filtered first audio signal over a first speaker to produce an acoustic spatially filtered first audio signal and playing the spatially filtered second audio signal over a second speaker to produce an acoustic spatially filtered second audio signal. The acoustic spatially filtered first audio signal and the acoustic spatially filtered second audio signal produce an isolated acoustic first source audio signal at a first position and an isolated acoustic second source audio signal at a second position.
摘要翻译：一种用于在电子设备上进行基于盲源分离的空间滤波的方法包括获得第一源音频信号和第二源音频信号。该方法还包括将盲源分离滤波器组应用于第一源音频信号和第二源音频信号以产生经空间滤波的第一音频信号和经空间滤波的第二音频信号。该方法还包括通过第一扬声器播放经空间滤波的第一音频信号以产生声学空间滤波的第一音频信号，并通过第二扬声器播放经空间滤波的第二音频信号，以产生声学空间滤波的第二音频信号。声空间滤波的第一音频信号和声学空间滤波的第二音频信号在第一位置处产生隔离的声学第一源音频信号，并在第二位置处产生隔离的声学第二源音频信号。

8. 发明申请

WO2012061151A1 SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR ORIENTATION-SENSITIVE RECORDING CONTROL 审中-公开
标题翻译：用于定向敏感记录控制的系统，方法，装置和计算机可读介质
公开(公告)号：WO2012061151A1
公开(公告)日：2012-05-10
申请号：PCT/US2011/057730
申请日：2011-10-25
申请人： QUALCOMM INCORPORATED , VISSER, Erik , LIU, Ian Ernan , RAMAKRISHNAN, Dinesh , KIM, Lae-Hoon , XIANG, Pei
发明人： VISSER, Erik , LIU, Ian Ernan , RAMAKRISHNAN, Dinesh , KIM, Lae-Hoon , XIANG, Pei
IPC分类号： H04R5/00 , G11B20/00 , G10L17/00 , H04M1/00
CPC分类号： H04R3/005 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2430/21 , H04R2430/23 , H04S7/303 , H04S2400/15
摘要： Systems, methods, apparatus, and machine-readable media for orientation-sensitive selection and/or preservation of a recording direction using a multi-microphone setup are described.
摘要翻译：描述了使用多麦克风设置进行方向敏感选择和/或保存记录方向的系统，方法，装置和机器可读介质。

9. 发明申请

WO2011056640A1 DATA SEARCHING USING SPATIAL AUDITORY CUES 审中-公开
标题翻译：数据搜索使用空间审计CUES
公开(公告)号：WO2011056640A1
公开(公告)日：2011-05-12
申请号：PCT/US2010/054249
申请日：2010-10-27
申请人： QUALCOMM INCORPORATED , XIANG, Pei , MAHAJAN, Manish
发明人： XIANG, Pei , MAHAJAN, Manish
IPC分类号： G06F17/30
CPC分类号： H04R5/00 , G06F3/167 , G06F17/30775 , G06F17/30864
摘要： Spatial auditory cues are produced while a user searches a database for stored information. The spatial auditory cues assist the user in quickly locating stored information by producing sounds that are perceived at specific physical locations in space around the user as the search proceeds. Each location may be associated with different information. Thus, using the techniques disclosed herein, a user can more easily recall stored information by remembering the locations of sound produced by particular spatial auditory cues. The spatial auditory cues may be used in conjunction with a visual search interface. A method of producing auditory cues includes receiving a search action at a user interface included in a device, translating the search action into a spatial auditory cue corresponding to a specific location within a space, and rendering the spatial auditory cue as an audio output signal.
摘要翻译：当用户在数据库中搜索存储的信息时，产生空间听觉线索。空间听觉线索通过在搜索进行时通过产生在用户周围的空间中的特定物理位置处感知到的声音来帮助用户快速定位存储的信息。每个位置都可能与不同的信息相关联。因此，使用本文公开的技术，用户可以通过记住由特定空间听觉线索产生的声音的位置来更容易地回忆存储的信息。空间听觉线索可以与视觉搜索界面结合使用。产生听觉提示的方法包括在包括在设备中的用户界面处接收搜索动作，将搜索动作转换成对应于空间内的特定位置的空间听觉提示，以及将空间听觉提示呈现为音频输出信号。

10. 发明申请

WO2012096897A1 LOUDNESS MAXIMIZATION WITH CONSTRAINED LOUDSPEAKER EXCURSION 审中-公开
标题翻译： LOUDESS最大化与约束扬声器EXCURSION
公开(公告)号：WO2012096897A1
公开(公告)日：2012-07-19
申请号：PCT/US2012/020672
申请日：2012-01-09
申请人： QUALCOMM INCORPORATED , RYU, Sang-Uk , SHIN, Jongwon , SILVERSTEIN, Roy B. , SCHEVCIW, Andre Gustavo P. , XIANG, Pei
发明人： RYU, Sang-Uk , SHIN, Jongwon , SILVERSTEIN, Roy B. , SCHEVCIW, Andre Gustavo P. , XIANG, Pei
IPC分类号： H04R3/02 , H04R3/00
CPC分类号： H04R3/007
摘要： An original loudness level of an audio signal is maintained for a mobile device while maintaining sound quality as good as possible and protecting the loudspeaker used in the mobile device. The loudness of an audio ( e.g. , speech) signal may be maximized while controlling the excursion of the diaphragm of the loudspeaker (in a mobile device) to stay within the allowed range. In an implementation, the peak excursion is predicted ( e.g. , estimated) using the input signal and an excursion transfer function. The signal may then be modified to limit the excursion and to maximize loudness.
摘要翻译：维持音频信号的原始响度级别，同时保持声音质量尽可能好并且保护移动设备中使用的扬声器。音频（例如，语音）信号的响度可以在控制扬声器（在移动设备中）的振膜的偏移保持在允许的范围内的同时被最大化。在实现中，使用输入信号和偏移传递函数预测（例如，估计）峰值偏移。然后可以修改信号以限制偏移并且最大化响度。

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