Noise Gate

What is the difference between a noise gate and a compressor?

I’m recording music and I need a compressor. I’m wondering if a noise gate is similar to a compressor. I also have an option on adobe audition that is called “normalize” is this anything like a compressor?

Ok, here goes- A compressor is an device for reducing the range of dynamics of an audio signal. Use this to boost the quiet bits and reduce the loud bits. A noise-gate cuts out audio signals below a dB threshold selected by the engineer. An example of this would be to remove bleed from in between words on a vocal take, ie; making the silent bits properly silent. Normalizing will adjust the level of your audio so that the highest peak is at the maximum recording level (pre-distortion).

So, you can set a compressor to normalize, but you can’t compress with a normalizer. Hope this helps! x

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A noise gate does exactly what it seems.

It acts as a door opens when a threshold is reached and closes depending on the speed a statement that is defined, basically acting as a switch on / off.

It reduces the gain when the input level drops below the threshold, ie when a
audio instrument or stop playing, or comes to a place where the low level, noise
the door is activated and reduces the volume of the file.

Overall, noise gates have the following controls:

Threshold: the door is "open" once the threshold has been reached. The threshold will have different ranges (for example:-60dB to infinity) and is represented in dB (decibels). Once the threshold is set, the door will open at the moment the threshold is reached.

Attack: Determines the speed of kicks in the door, like attacking a compressor, and is usually measured in ms (milliseconds) and derivatives of the sub. This is a useful feature as the attack speed of the door can completely change the tone color of a sound once closed.

Hold: This feature allows the door to remain open (or keep) for the specified period and is measured in ms and seconds. Very useful especially when the audio passages that will be necessary "let through".

Caries or release: This function determines how fast the door closes and whether immediate or gradual over time. Feature crucial because not all sounds have a sharp end (which pills, etc.).

Side chain (accession number): Some doors (Infact more) also have a side chain function that allows an external audio signal to control the configuration of the door.

When the side chain is above the threshold, a control signal is generated to open the door to a rate set by the attack control. When the signal falls below the threshold, the door closes according to the configuration of the hold and release controls.

Clever uses for the key input (side chain) are ducking and repeat closed the effects used in the genres of dance.

The effect of repeated door (or stuttering) is achieved by inputting a master key to high hat activate the door to open and close. Using sound pad and high-hat key input pattern are able to achieve the effect of stuttering famous used both in dance music.

Ducking: Some doors will include a 'Ducking mode "in which a signal is reduced another level when it starts, is reproduced in the input signal, which is usually the sign that needs to escape, is sent to the key input (side chain), and attack of the door and release times set the rate at which the change in levels of response to the key input signal.

The popular use is to avoid it general in the broadcasting industry whereby the DJ music needs to be quiet so that he / she can be heard when speaking (once the voice is used in the key entry and triggered then the music is low in volume).

However, side chain (key entry) and avoid all the doors are not is good.

The most common use of a door, at least in the old days of analog consoles and tape machines, was used to remove the door "noise." When selecting a threshold above the noise level of the door would open to allow through audio above the threshold and after closing when necessary. This meant that certain frequencies and noise levels were "closed" the adoption of audio and therefore less polluting.

But not just there. There are so many uses for a noise gate, EQ using a unit as the key input for configuration of audio lines and false fire cure, to avoid situations Comment (and still used today), for creative tasks calendering sound (like the repetition of door) and so on.

With Current software-based doors give us plenty of exciting new features that make the door more than a simple noise gate '.

Experiment and ignore this weapon.

If you need to understand how to use a noise gate in a practical situation, then you're in luck because this method and the tool is used in detail in the e-book simplified mixing.

Eddie Bazil (Zukan)

www.samplecraze.com

About the Author:

Eddie Bazil is very well known in the music industry and has been associated with bands, labels, studios, and teaching institutions.

As a member of MCPS, and having material released through a number of other publishing houses, Eddie’s works have extended to the global markets.

Article Source: ArticlesBase.com – What is a Noise Gate?