8
Setting the compression level
Setting the compression threshold
Setting the attack time, this is the time between the signal rise and the actual response of the compressor
Setting the decay time, this is the time the compressor needs to respond to a decrease of the signal
Setting the integration interval, this is the time the DSP extracts the samples
Integration interval determines the energy needed to trip the compressor. In layman’s terms it determines how long
the audio needs to be loud for the compressor to respond by reducing the gain. This is not to be confused with attack
time. Attack time of 50ms means the compressor will respond in 50ms after the signal spike is detected, regardless of
duration of that spike, even if it is just a very short event. With longer integration interval, on the other hand,
compressor only responds if a substantial number of spikes is detected (meaning more signal energy).
PRE-EMPHASIS
Pre-emphasis is selected with a jumper. It should be set to either 50uS (standard for EU and most of the world) or
75uS (United states and Canada). There are two jumpers, correct position is marked on the stereo encoder board.
This is already done in the factory for you so do not change it unless you know what you are doing.
RF EQUILIZER
This is a new revolutionary setting that lets you control how your transmitter rolls off at the band edges. Several
settings are available and are represented by a graphic.
Default setting does not try to correct or increase power output at band edges. Additional settings give a slight power
boost at the band edges around 88 and 108MHz or at the upper or lower band edge only, helping flatten-out the
frequency response of many RF amplifiers which tend to have lower output power and gain at the band edges.