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Method for eliminating unwanted acoustic signals in audio programs to be edited for reproduction

机译:消除要编辑的音频节目中不需要的声信号的方法

摘要

A method is proposed for eliminating or suppressing unwanted acoustic signals in audio programs to be edited for reproduction in studios, in which the perceived disrupted segments in the signal are determined with respect to their time positions, and the signal ends having signal flow/polarity changes adjacent to the disrupted signal location are bridged by a transfer function, preferably in the shape of a semi-sine. The semi-sine is stored in the form of sampling values in an addressable read-only memory and can be read therefrom. In order to generate the desired transfer function, the signals read from the read only memory are uniformly distributed over the transfer function in accordance with the plurality of sampling values to be replaced across the width of the disrupted segment, the read signals being weighted in accordance with the margin conditions of the signal ends adjacent to the disrupted segment and being inserted in the proper sequence into the signal in the area of the original disrupted segment upon consideration of the direction of signal change.
机译:提出了一种用于消除或抑制要在演播室中编辑以再现的音频节目中的不想要的声学信号的方法,其中,相对于信号的时间位置确定信号中感知到的扰动段,并且信号端具有信号流/极性变化邻近被破坏信号位置的位置通过传递函数桥接,优选地为半正弦形状。半正弦以采样值的形式存储在可寻址的只读存储器中,并可从中读取。为了产生期望的传递函数,从只读存储器读取的信号根据多个采样值被均匀地分布在传递函数上,以在中断段的整个宽度上被替换,读取的信号根据在考虑到信号变化方向的情况下,信号的余量条件以邻近干扰段的方式结束,并以适当的顺序插入原始干扰段的区域中的信号中。

著录项

  • 公开/公告号US4501014A

    专利类型

  • 公开/公告日1985-02-19

    原文格式PDF

  • 申请/专利权人 POLYGRAM GMBH;

    申请/专利号US19840570413

  • 发明设计人 BJORN BLUTHGEN;

    申请日1984-01-12

  • 分类号G11B3/00;

  • 国家 US

  • 入库时间 2022-08-22 07:53:05

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