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21.发明申请公开(公告)号：US20080269926A1
公开(公告)日：2008-10-30
申请号：US11742476
申请日：2007-04-30
IPC分类号： H04S7/00
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) and Automatic Volume Control (AVC) to increase the volume of sound 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) 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）和自动音量控制（AVC）以增加从移动音频的扬声器发出的声音的音量 设备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）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。
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22.发明授权公开(公告)号：US09552840B2
公开(公告)日：2017-01-24
申请号：US13280303
申请日：2011-10-24
申请人： Lae-Hoon Kim , Erik Visser , Pei Xiang , Ian Ernan Liu , Dinesh Ramakrishnan
发明人： Lae-Hoon Kim , Erik Visser , Pei Xiang , Ian Ernan Liu , Dinesh Ramakrishnan
CPC分类号： G11B20/00 , H04R3/005 , H04R2201/401 , H04S2400/15
摘要： A method for audio signal processing is described. The method includes decomposing a recorded auditory scene into a first category of localizable sources and a second category of ambient sound. The method also includes recording an indication of the directions of each of the localizable sources. The method may be performed with a device having a microphone array.
摘要翻译： 描述用于音频信号处理的方法。 该方法包括将记录的听觉场景分解为第一类可本地化的源和第二类环境声音。 该方法还包括记录每个可本地化的源的方向的指示。 该方法可以用具有麦克风阵列的设备来执行。
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公开(公告)号：US08891788B2
公开(公告)日：2014-11-18
申请号：US13326564
申请日：2011-12-15
IPC分类号： H03G5/00 , H04R1/10 , G10L21/0208
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.
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公开(公告)号：US08417703B2
公开(公告)日：2013-04-09
申请号：US12905340
申请日：2010-10-15
申请人： Pei Xiang , Manish Mahajan
发明人： Pei Xiang , Manish Mahajan
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。 一种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线索，以及将空间听觉提示呈现为音频输出信号。
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公开(公告)号：US20100331048A1
公开(公告)日：2010-12-30
申请号：US12629612
申请日：2009-12-02
申请人： Pei Xiang , Wade L. Heimbigner
发明人： Pei Xiang , Wade L. Heimbigner
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。
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26.发明申请METHODS AND APPARATUS FOR PROVIDING A DISTINCT PERCEPTUAL LOCATION FOR AN AUDIO SOURCE WITHIN AN AUDIO MIXTURE 有权用于在音频混合中提供音频源的异常识别位置的方法和装置公开(公告)号：US20090136044A1
公开(公告)日：2009-05-28
申请号：US11946365
申请日：2007-11-28
IPC分类号： H04H20/00
CPC分类号： H04S7/30 , H04S7/302 , H04S2400/11
摘要： In accordance with a method for providing a distinct perceptual location for an audio source within an audio mixture, a foreground signal may be processed to provide a foreground perceptual angle for the foreground signal. The foreground signal may also be processed to provide a desired attenuation level for the foreground signal. A background signal may be processed to provide a background perceptual angle for the background signal. The background signal may also be processed to provide a desired attenuation level for the background signal. The foreground signal and the background signal may be combined into an output audio source.
摘要翻译： 根据用于为音频混合中的音频源提供不同的感知位置的方法，可以处理前景信号以提供前景信号的前景感知角度。 还可以处理前景信号以为前景信号提供期望的衰减电平。 可以处理背景信号以为背景信号提供背景感知角度。 背景信号也可以被处理以为背景信号提供期望的衰减水平。 前景信号和背景信号可以组合成输出音频源。
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27.发明授权Automated user/sensor location recognition to customize audio performance in a distributed multi-sensor environment 有权自动用户/传感器位置识别，可在分布式多传感器环境中自定义音频性能公开(公告)号：US09408011B2
公开(公告)日：2016-08-02
申请号：US13476815
申请日：2012-05-21
申请人： Lae-Hoon Kim , Pei Xiang , Erik Visser
发明人： Lae-Hoon Kim , Pei Xiang , Erik Visser
CPC分类号： H04S7/303 , H04R1/323 , H04R3/12 , H04R29/002 , H04R2430/20 , H04S7/301 , H04S7/302
摘要： A wireless device is provided that makes use of other nearby audio transducer devices to generate a surround sound effect for a targeted user. To do this, the wireless device first ascertains whether there are any nearby external microphones and/or loudspeaker devices. An internal microphone for the wireless device and any other nearby external microphones may be used to ascertain a location of the desired/targeted user as well as the nearby loudspeaker devices. This information is then used to generate a surround sound effect for the desired/targeted user by having the wireless device steer audio signals to its internal loudspeakers and/or the nearby external loudspeaker devices.
摘要翻译： 提供了一种无线设备，其利用其他附近的音频传感器设备来为目标用户产生环绕声效果。 为此，无线设备首先确定是否存在附近的外部麦克风和/或扬声器设备。 用于无线设备和任何其他附近的外部麦克风的内部麦克风可以用于确定期望/目标用户以及附近的扬声器设备的位置。 然后，该信息用于通过使无线设备将音频信号转向其内部扬声器和/或附近的外部扬声器设备来为期望/目标用户生成环绕声效果。
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28.发明授权Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control 有权用于方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：US09031256B2
公开(公告)日：2015-05-12
申请号：US13280211
申请日：2011-10-24
申请人： Erik Visser , Ian Ernan Liu , Dinesh Ramakrishnan , Lae-Hoon Kim , Pei Xiang
发明人： Erik Visser , Ian Ernan Liu , Dinesh Ramakrishnan , Lae-Hoon Kim , Pei Xiang
CPC分类号： H04R3/005 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2430/21 , H04R2430/23 , H04S7/303 , H04S2400/15
摘要： A method of orientation-sensitive recording control includes indicating, within a portable device and at a first time, that the portable device has a first orientation relative to a gravitational axis and, based on the indication, selecting a first pair among at least three microphone channels of the portable device. This method also includes indicating, within the portable device and at a second time that is different than the first time, that the portable device has a second orientation relative to the gravitational axis that is different than the first orientation and, based on the indication, selecting a second pair among the at least three microphone channels that is different than the first pair. In this method, each the at least three microphone channels is based on a signal produced by a corresponding one of at least three microphones of the portable device.
摘要翻译： 方向敏感记录控制的方法包括在便携式设备内并且在第一时间指示便携式设备相对于重力轴具有第一取向，并且基于该指示，在至少三个麦克风中选择第一对 便携式设备的通道。 该方法还包括在便携式设备内并且在与第一次不同的第二时间指示便携式设备相对于不同于第一方位的重力轴具有第二定向，并且基于该指示， 在所述至少三个麦克风通道中选择与所述第一对不同的第二对。 在该方法中，每个至少三个麦克风通道基于由便携式设备的至少三个麦克风中的对应的一个产生的信号。
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29.发明授权Methods and apparatus for providing an interface to a processing engine that utilizes intelligent audio mixing techniques 有权用于提供利用智能音频混合技术的处理引擎的接口的方法和装置公开(公告)号：US08515106B2
公开(公告)日：2013-08-20
申请号：US11946319
申请日：2007-11-28
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。
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30.发明申请AUTOMATED USER/SENSOR LOCATION RECOGNITION TO CUSTOMIZE AUDIO PERFORMANCE IN A DISTRIBUTED MULTI-SENSOR ENVIRONMENT 有权自动用户/传感器位置识别在分布式多传感器环境中自定义音频性能公开(公告)号：US20130156198A1
公开(公告)日：2013-06-20
申请号：US13476815
申请日：2012-05-21
申请人： Lae-Hoon Kim , Pei Xiang , Erik Visser
发明人： Lae-Hoon Kim , Pei Xiang , Erik Visser
IPC分类号： H04R5/00
CPC分类号： H04S7/303 , H04R1/323 , H04R3/12 , H04R29/002 , H04R2430/20 , H04S7/301 , H04S7/302
摘要： A wireless device is provided that makes use of other nearby audio transducer devices to generate a surround sound effect for a targeted user. To do this, the wireless device first ascertains whether there are any nearby external microphones and/or loudspeaker devices. An internal microphone for the wireless device and any other nearby external microphones may be used to ascertain a location of the desired/targeted user as well as the nearby loudspeaker devices. This information is then used to generate a surround sound effect for the desired/targeted user by having the wireless device steer audio signals to its internal loudspeakers and/or the nearby external loudspeaker devices.
摘要翻译： 提供了一种无线设备，其利用其他附近的音频传感器设备来为目标用户产生环绕声效果。 为此，无线设备首先确定是否存在附近的外部麦克风和/或扬声器设备。 用于无线设备和任何其他附近的外部麦克风的内部麦克风可以用于确定期望/目标用户以及附近的扬声器设备的位置。 然后，该信息用于通过使无线设备将音频信号转向其内部扬声器和/或附近的外部扬声器设备来为期望/目标用户生成环绕声效果。
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