我不作辩论性的说明,争来争去没完没了。 我作知识性的介绍,希望有益读者,至于大家怎么理解的,仁者见仁,智者见智。
Noise reduction是什么? Gate 是什么?? 名字而已。 guitar rig 上面的Noise reduction完全就是个Gate ,threshold 完全就是起gate的作用,低于此的信号门就关上,一律去掉。 至于爱在上面标个gate还是标个Noise Reduction那就是个人的喜好了。 Gate 的作用就是降噪,而且是实时的降噪,降噪英文就叫Noise Reduction. 但是Noise Reduction还不一定就是Gate , 他可以用很多种的方法来实现Reduce the noise. 比如Samplitude 里面的Noise Reduction插件。 在Guitar rig 里面,单块的Noise reduction 和 Input 上的Noise reduction完全是同样的东西,单块只是拆出来方便你在其他的部位加载,而且说明了Noise Reduction这个模块就是一个简单的NoiseGate. 至于另外还有一个单块的Noise Gate,那个是一个参数更加全面的噪音门,就是除了Noise Reduction的功能外还带有Attack 和Release的设置,可以更细致的调节,也可以做一些效果。所以,我们可以把Guitar rig 2上的Noise gate也好,Noise reduction也好,一律叫做噪音门。
请看guitar rig 2说明书的原文:
关于Input 模块上的Noise Reduction:
The NR button turns the noise reduction on (button “pushed in”) or off (button “out”). The Threshold control sets a level; signals above this level will pass through the gate (the Gate LED is off). If the signal dips below the threshold, then the gate closes (the Gate LED glows red). This is helpful if your pickups are picking up any kind of low-level hum or buzz; set the gate Threshold just above this noise, and when you aren’t playing, the gate will not let the hum or buzz through. As soon as you start playing and the signal exceeds the threshold, the gate will open; hopefully the signal will be loud enough to “mask” the buzz.
The Gate’s Learn function automatically sets an optimum threshold. Without playing your guitar, click on Learn. GUITAR RIG 2 analyzes your signal, and sets the threshold just above any residual noise. Now when you play, the Gate should open
单块上的Noise Reduction:
Noise Reduction CComponent affects the signal similarly to a noise gate, but has a less abrupt action because it filters out noise below a certain threshold rather than relying solely on amplitude. It is very simple to adjust.
单块的噪音门:
A noise gate helps remove noise and hiss, but can also be used as a special effect. Although there is a simple gate built into the Input module, the Noise Gate CComponent is more sophisticated and offers more parameters.
To understand the principle of operation, suppose your guitar is picking up an electrical buzz. As long as you’re playing, the signal will generally be higher than the buzz and “mask” it. However, when the audio goes away, the noise is no longer masked and can be audible.
A noise gate does the equivalent of turning down the volume when there’s only noise present, then turning the volume back up when you’re playing. Its Threshold control sets the “dividing line” between what’s considered noise and what is considered signal. Setting the threshold just above the noise level insures that the noise will be muted when no signal is present.
使用噪音门的时机:
论坛上很多朋友都抱怨然践效果器的噪音很大,以至无法使用,事实上使用这一类的软件效果器不用噪音门是没法用的。 请看原文:
Guitar pickups are very susceptible to hum, light dimmer “hash,” and the interference generated by computers and monitors. LCCD monitors create less interference than CCRT types, and humbuckers are less likely to pick up interference than single coil pickups. Piezo pickups, like those used in the Line 6 Variax, do not pick up this interference.
As you play with GUITAR RIG 2, always position your guitar so it picks up the least amount of interference. GUITAR RIG 2’s Noise Reduction can help get rid of some interference, but it is not a substitute for orienting your guitar away from sources of interference.
吉他拾音器对于嗡嗡声,日光灯辐射,尤其电脑主机和显示器产生的干扰是非常敏感的。液晶显示器比CCRT显示器产生的干扰小一些,双线圈的拾音器比单线圈拾到的干扰要小一些。 Piezo拾音器,好像在Line 6 Variax使用的那些,就完全不会拾到这些干扰。当你使用GUITAR RIG 2时,尝试把吉他摆放在一个只拾到最小干扰的地方。 Guitar rig2 的 Noise Reduction可以帮你去掉一些干扰,但是最好还是尽量使你的吉他远离干扰源。
另外,要使用噪音门是当你使用一些非常脏的音色的时候,这些强烈的失真过载效果,使到你的吉他就算放在那里不动他,一有风吹地动,他也会发出不必要的噪音,这个时候你就可以使用噪音门,通过设置阀值,使到这些噪音在静止时刚好能被滤除掉,而当你演奏吉他时,信号超过了噪音门的阀值,噪音门就完全不起作用,但这个时候音乐的声音已经盖过噪音了,所以你就不会听到噪音。
当然,如果你是演奏一些清音音色,同时你的琴品质够高不会拾到任何的噪音,那你完全没有必要使用噪音门。