Lexicon MX300 사용자 매뉴얼

The MX300 offers two dynamics processing modules, De Esser and Compressor, that
utilize dbx’s legendary digital dynamics processing technology.

A De-Esser is a type of compressor used to tame excessive sibilance, or the “s” 
sounds in a vocal performance. Note that the De-esser does not pass dry audio.

A compressor is used to control the dynamic range of a signal. Typically used to tighten 
bass or drum tracks, or to control a vocal passage, a compressor is a very useful but 
often misunderstood tool. To better use the Compressor in the MX300, a bit of 
understanding about compression is helpful. Note that the Compressor does not pass 
dry audio.

When a signal level crosses the Threshold level, the compressor then reduces the 
amount of output level by an amount determined by the Ratio. For example, if the 
threshold is set to –12dB, and the ratio set to 4:1, then when signal exceeds –12dB, the 
signal level above that amount only increases by 1dB to every 4dB of signal level above 
–12dB. In this case, an incoming signal of –4dB (which is 8dB above the threshold) 
would result in an output signal of –10dB, or 2dB higher than the threshold level, 
since the 4:1 compression ratio only allowed 2dB more output, based on the 8dB 
increase above the –12dB threshold. 

Because the resulting output is less than the original signal, a third control, Makeup 
Gain compensates for this loss of level, but with less dynamic range, or the difference 
between the softest and loudest parts of the signal.

Note: The De-Esser and Compressor effects are Mono In Dual Stereo configuration 
programs.

Effects Descriptions

MX300