Compressors

Compressor relates to dynamic processors. These processors are designed to change the dynamic range of the signal. Dynamic range is the difference in decibels between the quietest and loudest sound of the signal. The wider dynamic range, the greater the difference between quiet and loud sounds.

The task of the compressor is to narrow the dynamic range of the processed audio signal. Compressor makes it more quiet, loud peaks of the signal and increases the volume of the quiet ones, thus reducing the difference between their levels.

Compressor has the following objectives: Removal of wavelets volume, which can make a significant distortion in digital audio;Error correction singer ,drops the volume of singing, which arise from the inability of some singers to keep the microphone at all times at the same distance from your mouth;Increase the overall level of entries in the data.

Consider the adjustable parameters of compressors:Threshold -specifies the level at which the compressor will begin to process the signal. This parameter is specified in decibels below the peak value. That is the threshold value of -4 dB means that the compressor will handle the signal if the level of the signal at 4 dB less than the calibrated value is 0 dB. In digital systems, 0 dB - the highest level of the signal. Ratio-this parameter determines how the compressor affects the signal. For example, the ratio of 2:1 means that if the signal exceeds the threshold, then the level of this signal should be reduced by half. If the signal level exceeds the specified 1 dB, then after compression, it will exceed the threshold only 0.5 dB.
Attack-this setting determines how fast the compressor will begin to process the signal.
Release-his parameter specifies the duration of the signal processing after the start of the signal. Like the attack value, decay sets in milliseconds.
Gain-with this option you can specify the level of the signal at the output of the compressor. The value is in decibels. Since the compressor, typically reduces the overall level of the signal, then using this option, you can restore it to its original.