论文部分内容阅读
美国dbx公司最近研制出一种用于录音设备的563x型降噪器。该降噪器与传统的dbx和杜比(dolby)降噪系统不同的是采用智能低通滤波器和dbx公司专利产品True RMS检测器组成的单端降噪系统(SENR),对各类不同的高频进行检测和控制,消除声源背景嘶声。当音乐或其他有用素材高频信号出现时,滤波器允许其通过。当高频消失时,滤波器即随之衰减。音乐高频再次出现时,
US dbx company recently developed a 563x noise reducer for recording equipment. Unlike conventional dbx and dolby noise reduction systems, the noise reducer is a single-ended noise reduction system (SENR) that uses an intelligent low-pass filter and True RMS detector from dbx patented product, The high-frequency detection and control, eliminating the background sound hiss. The filter allows it to pass when a high frequency signal of music or other useful material appears. When the high frequency disappears, the filter will be attenuated. When the high frequency of music appears again,