公开(公告)号：US20110096631A1

公开(公告)日：2011-04-28

申请号：US12910182

申请日：2010-10-22

申请人： Kazunobu KONDO ,  Kenichi YAMAUCHI ,  Kideki KEMMOCHI

发明人： Kazunobu KONDO ,  Kenichi YAMAUCHI ,  Kideki KEMMOCHI

IPC分类号： G01S1/72

CPC分类号： H04B1/06 ,  H04R1/406 ,  H04R3/005

摘要： In an audio processing device, a target sound emphasizer generates a target sound emphasized component by emphasizing a target sound component contained in a plurality of audio signals generated by a plurality of sound receiving devices. A stereo processor generates a stereo component of a plurality of channels from the plurality of audio signals. A first adjuster adjusts a sound pressure level of the target sound emphasized component according to a first adjustment value, and a second adjuster adjusts a sound pressure level of the stereo component according to a second adjustment value. A variable setter variably sets a zoom value which is changeable between a wide angle side and a telephoto side relative to a target. An adjustment controller controls the first adjustment value according to the zoom value such that the sound pressure level of the target sound emphasized component exponentially decreases as the zoom value changes toward the wide-angle side and controls the second adjustment value according to the zoom value such that the sound pressure level of the stereo component increases as the zoom value changes toward the wide-angle side.

摘要翻译： 在音频处理装置中，目标声音增强器通过强调由多个声音接收装置产生的多个音频信号中包含的目标声音成分来产生目标声音强调分量。 立体声处理器从多个音频信号产生多个声道的立体声分量。 第一调节器根据第一调整值调整目标声音增强分量的声压级，并且第二调节器根据第二调整值调节立体声分量的声压级。 可变设定器可变地设置相对于目标物在广角侧和长焦侧之间可变的变焦值。 调节控制器根据变焦值控制第一调整值，使得目标声音强调成分的声压级随着变焦值向广角侧变化而指数地减小，并且根据变焦值控制第二调整值， 立体声分量的声压级随着变焦值向广角侧变化而增加。