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1.发明申请VIRTUAL HEIGHT FILTER FOR REFLECTED SOUND RENDERING USING UPWARD FIRING DRIVERS 有权虚拟高度过滤器，用于使用更高级的驱动程序进行反射式声音渲染公开(公告)号：US20150304791A1
公开(公告)日：2015-10-22
申请号：US14759182
申请日：2014-01-07
发明人： Brett G. CROCKETT , Christophe CHABANNE , Mark TUFFY , Alan J. SEEFELDT , C. Phillip BROWN , Patrick TURNMIRE
摘要： Embodiments are directed to speakers and circuits that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. The speaker comprises upward firing drivers to reflect sound off of the upper surface and represents a virtual height speaker. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The virtual height filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the upward-firing driver.
摘要翻译： 实施例涉及将声音从天花板反射到距扬声器一定距离的收听位置的扬声器和电路。 反射的声音提供高度线索来再现具有开销音频分量的音频对象。 扬声器包括向上的发射驱动器以将声音反射离开上表面并且代表虚拟高度扬声器。 基于定向听力模型的虚拟高度滤波器被应用于向上触发驱动器信号，以改善由虚拟高度扬声器发送的音频信号的高度感知，以提供架空反射声音的最佳再现。 虚拟高度滤波器可以作为分离全频带并将高频声音发送到向上射击驱动器的交叉电路的一部分被并入。
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公开(公告)号：US20170251298A1
公开(公告)日：2017-08-31
申请号：US15511488
申请日：2015-09-16
摘要： There is provided a sound system comprising: a first reflector arranged overhead and to reflect sound into a listening environment, a sound emitting device comprising a sound source and a second reflector, the sound source being configured to direct a sound beam with a first beam angle into the second reflector, the sound emitting device being any of a horn or parabolic loudspeaker. The second reflector is shaped to reflect the sound beam with a second beam angle towards the first reflector, and the first reflector is shaped such as it reflects the sound beam back to the listening environment with a third beam angle. The second beam angle is less than the first beam angle, and the third beam angle is greater than the second beam angle. There is further provided a sound system wherein three of more reflectors are used to reflect sound back down to the listening environment. Additionally, at least one sound absorbing device of a three dimensional shape is positioned in between the overhead reflectors.
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