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咝声消除器 这是一种用来去除扩声系统高频咝咝噪声的设备,通常将它串入左右主扩声道,实现消除效果。咝咝声是一种固定频率的高频噪声,其频率范围在2.5kHz-10kHz。这类噪声大都来自扩声设备之间连接不匹配,引起寄生振荡,或者扩声设备中某设备存在固有高频噪声,进入扩声系统,引发这种噪声。咝声消除器串入声信号通道中,用扫频旋钮寻找咝声频点,用衰减旋钮调节衰减量,当扫频点正好对准咝声频点时,扩声系统的咝声便随之消失。在实用
咝 sound canceller This is a device used to remove high-frequency 扩 咝 noise of the sound reinforcement system, it is usually string into the left and right main PA channel, to eliminate the effect.咝 咝 sound is a fixed frequency high frequency noise, the frequency range of 2.5kHz-10kHz. This type of noise mostly results from mismatches in connections between PA devices, causing parasitic oscillations, or inherent high-frequency noise from a device in PA equipment, entering the PA system and causing such noise.咝 sound eliminator string into the sound signal channel, use the sweep knob to find 咝 sound frequency, with the attenuation knob to adjust the attenuation, when the sweep point is right 咝 audio frequency point, the sound of the sound reinforcement system will disappear. Practical