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    • 5. 发明申请
    • Virtual Audio System Tuning
    • 虚拟音频系统调谐
    • US20130156213A1
    • 2013-06-20
    • US13328296
    • 2011-12-16
    • Davis Y. PanWilliam M. RabinowitzWontak KimHal Greenberger
    • Davis Y. PanWilliam M. RabinowitzWontak KimHal Greenberger
    • G10K11/16
    • H04S7/00G10K11/178G10K2210/1082G10K2210/1282G10K2210/3046G10K2210/3048G10K2210/3055H04R29/00H04R2420/01H04R2499/13
    • A method of virtually tuning an audio system that incorporates an acoustic compensation system, where the audio system is adapted to play audio signals in a listening environment over one or more sound transducers. The acoustic compensation system has an audio sensor located at a sensor location in the listening environment. The transfer functions from each sound transducer to the audio sensor location are inherent. The method contemplates recording noise at the sensor location, and creating virtual transfer functions from each sound transducer to the sensor location based on the inherent transfer functions from each sound transducer to the sensor location. Audio signals are processed through the virtual sound transducer to sensor location transfer functions. A virtual sensor signal is created by combining the audio signals processed through the virtual sound transducer to sensor location transfer functions with the noise recorded at the sensor location.
    • 一种虚拟调谐包括声学补偿系统的音频系统的方法,其中音频系统适于在听觉环境中通过一个或多个声音换能器播放音频信号。 声学补偿系统具有位于听觉环境中的传感器位置处的音频传感器。 从每个声音传感器到音频传感器位置的传递功能是固有的。 该方法考虑在传感器位置处记录噪声,并且基于从每个声音换能器到传感器位置的固有传递函数,从每个声音换能器到传感器位置创建虚拟传递函数。 音频信号通过虚拟声音传感器处理,以传感器位置传递功能。 通过将通过虚拟声音传感器处理的音频信号与传感器位置传递函数与传感器位置处记录的噪声组合来创建虚拟传感器信号。
    • 7. 发明授权
    • Noise-reducing stethoscope
    • 减噪听诊器
    • US5492129A
    • 1996-02-20
    • US161713
    • 1993-12-03
    • Hal Greenberger
    • Hal Greenberger
    • A61B7/04A61B5/02A61B7/02
    • A61B7/04
    • A noise-reducing stethoscope comprising a body sound sensor for placement on a body to detect internal body sounds and output in response an electrical signal, an ambient noise sensor, proximate the body sound sensor, to detect ambient noise and output in response an electrical signal, and a difference comparator for accepting the electrical signals from both sensors and providing in response a difference signal, in which the difference signal contribution from ambient noise is less than the contribution from ambient noise to the body sound sensor electrical signal to cancel noise artifacts in the body sound sensor electrical signal.
    • 一种降噪听诊器,包括身体声音传感器,用于放置在身体上以检测内部身体声音并响应于电信号输出,靠近身体声音传感器的环境噪声传感器,以检测环境噪声并响应于电信号输出 以及差分比较器,用于接收来自两个传感器的电信号并且响应于提供差信号,其中来自环境噪声的差信号贡献小于从环境噪声对身体声音传感器电信号的贡献,以消除噪声伪影 身体声音传感器电信号。