首页> 外国专利> In the sounding body directivity amendment manner in

In the sounding body directivity amendment manner in

机译:音体指向性修正方式中

摘要

PROBLEM TO BE SOLVED: To provide a method for correcting a sounding body directivity which prevents a high frequency region from being indistinct even when a gain in the rear of a speaker becomes high in a delay sum array method.;SOLUTION: In the delay sum array method, a position of the sounding body is detected from output signals of a plurality of microphones. Output signals from a plurality of microphones near the sounding body (near microphone output signals) among the plurality of microphones are monitored by a frequency region. A direction of the microphone having the highest high region of a spectrum envelope of frequency characteristics among the near microphone output signals is detected as a front face of the sounding body. A difference from frequency characteristics of the other microphones is detected and corrected.;COPYRIGHT: (C)2002,JPO
机译:解决的问题:提供一种校正发声体指向性的方法,该方法即使在扬声器总后方的增益变高时,也可以通过延迟和阵列方法来防止高频区域模糊。阵列方法中,从多个麦克风的输出信号中检测发声体的位置。通过频率区域来监视来自多个麦克风中靠近发声体的多个麦克风的输出信号(附近的麦克风输出信号)。在近的麦克风输出信号中,具有频率特性的频谱包络的​​最高区域的麦克风的方向被检测为发声体的前面。检测并纠正了与其他麦克风的频率特性的差异。;版权所有:(C)2002,JPO

著录项

  • 公开/公告号JP3540988B2

    专利类型

  • 公开/公告日2004-07-07

    原文格式PDF

  • 申请/专利权人 日本電信電話株式会社;

    申请/专利号JP20000215545

  • 发明设计人 清原 健司;古家 賢一;

    申请日2000-07-17

  • 分类号H04R3/00;G01S3/802;

  • 国家 JP

  • 入库时间 2022-08-21 23:24:50

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号