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    • 1. 发明专利
    • Sound source direction detecting device, the sound source direction detection method and the sound source direction detecting camera
    • 空值
    • JP4872871B2
    • 2012-02-08
    • JP2007252734
    • 2007-09-27
    • ソニー株式会社
    • 康広 小玉貴義 川口洋平 櫻庭
    • G10L15/28G10L21/02H04N7/15H04R1/40H04R3/00
    • G01S3/801G01S3/8083G01S3/86
    • Disclosed herein is a sound source direction detecting apparatus including: a plurality of microphones configured to collect sounds from a sound source in order to form an audio frame; a frequency decomposition section configured to decompose the audio frame into frequency components; an error range determination section configured to determine the effects of noises collected together with the sounds as an error range relative to phases; a power level dispersion section configured to disperse power levels of the sounds for each of the frequency components decomposed by the frequency decomposition section, on the basis of the error range determined by the error range determination section; a power level addition section configured to add the power levels dispersed by the power level dispersion section; and a sound source direction detection section configured to detect the direction of the sound source based on the phase at which is located the highest of the power levels added by the power level addition section.
    • 这里公开了一种声源方向检测装置,包括:多个麦克风,被配置为从声源收集声音以形成音频帧; 频率分解部,被配置为将音频帧分解成频率分量; 误差范围确定部分,被配置为将与所述声音一起收集的噪声的影响确定为相对于相位的误差范围; 功率电平分散部,其基于由所述误差范围确定部确定的误差范围,分配由所述频率分解部分解的每个频率分量的声音的功率电平; 功率电平相加部分,被配置为添加由功率电平分散部分分散的功率电平; 以及声源方向检测部,被配置为基于位于功率电平相加部附加的最高功率电平的相位来检测声源的方向。