【 Weak current College 】 microphone amplifier use---Power By 【 China power house network 】

Microphone amplifier, hereinafter referred to as the "words" and is on the microphone input signal is amplified by the device.
Whether we put a microphone in a mixer, audio, or karaoke machine, these devices have one (or more) words, there is also a separate work, it is only in charge of the microphone signal amplification and carry out the necessary treatment and then becoming line output signal output out again. This independent work placed in General is quite comprehensive and professional, I'm here to talk about such things, as well as digital mixer with words put on.
These words often with the following features: 1, 2, compression; EQ; 3, flapping noise canceller; 4, hiss elimination; 5, noise gate.
I personally prefer to use one of the compression and hiss Eliminator, others are mixed in a late-shrinkage. again when
First of all, our first microphone cables connected properly with words, and through the normal sound test words input level adjustment.
To the human voice as an example, let the singers singing with accompaniment of normal, and adjust the input level to enable sound peak does not exceed the device's truncated level.
Step 2: adjusting the compression, I here just to indicate compression device in response to the human voice as well as some simple musical instruments at the time of use.
The most important principle is: the purpose of using compression with just the sound of dynamic compression, so that it has strong expressiveness and fullness and cannot ignore is-compression using cannot allow the audience to listen to the "mark", that is, a song, or a musical instrument, if you registered after making people feel the sound appears after a compressed process, then, is what you use to press the device failed.
So how do not compress trace listeners hear? I still voice for example:
Singer singing is a slow song, sound requirements in most cases is smooth, stable. In the compressor, as is appropriate to reduce startup time, increased recovery time, reducing the threshold, and increase the compression ratio, I usually use the experience is about 60ms started, recovery 150ms, threshold-20db or so, the compression ratio is 4: 1 or 6: 1. Of course, this number is not a definite, different voices, different devices, etc. on a variety of criteria, will produce different compressor with regulator, which depends on everyone to practice.
Singer singing song is fast when needed is a sound and strong, and clean power, not slow.
In the compressor, as is appropriate to extend the start time, reduce recovery time, increase the threshold, and the use of more great compression ratio. I usually use the experience is about getting started, recovery 150ms 50 ~ 20ms, threshold-8db or so, the compression ratio is 8: 1 ~ 10: 1.
In the early recording voice, nothing can turn a one-time adjustment of dynamic are good, at a later stage when the shrink-to continue to adjust for sure.
As regards the hiss Eliminator, most would put a relatively simple, only need to set the thresholds and the Elimination of quantity, the focus of hiss elimination is to enable the sound does not change because the treatment of turbid.
As for the other instruments recorded in the adjustment of compression for a key when grasping is: all the sound through the compressor for processing after try not to sign with compressed, and smooth.