本文叙述一种用来检测和降低唱片脉冲噪声的系统。脉冲噪声波形的基本特点是瞬变速度快,持续时间短。本文叙述了一种检测器,利用这两个特点对噪声和信号加以区别。讨论和比较了几种降噪方法。阐明了一种简单的衰减技术,在主观感觉上,这种技术与复杂的技术相比是同样可取的。考虑了在性能最佳时延迟线和衰减器的设计,评价了系统的主观性能。 This article describes a system used to detect and reduce the recording noise. The basic characteristics of impulse noise waveform is fast transient, short duration. This article describes a detector that uses these two characteristics to distinguish noise and signal. Several noise reduction methods are discussed and compared. Illustrates a simple attenuation technique that is subjectively perceived as preferable to sophisticated techniques. The design of the delay line and attenuator at the best performance is considered, and the subjective performance of the system is evaluated.