A Reverb is multiple reflections of sound that results from surrounding walls or objects when some sounds hit them. It is in effect a room simulator.
Reverb is the artificial effect given to any audio to simulate surrounding environment.
Reverb is the most important effect in the chain of FX on channels, whether it is voice, instruments or Drums. Reverb is applied in different ways to different parts of music. As we are not going into more complex definition or meaning of Reverb, which sometimes becomes confusing.
I am writing basic and effective knowledge of reverb.
Reverb generally has these parameters:
This is actually time delay between Direct Signal and start of reverb. Which means reverb will start after the direct sound. Larger the space between sound and walls the greater the Pre-delay.
Decay Time is the tail of reflections. Means how much time it will take to vanish. We can set decay time in milliseconds.
Early Reflections are reflections from the Side walls, which takes longest time to reach our ears. It helps us to quickly identify the room size.
This is two bands EQ of Reverb. This is a High shelf or a Low shelf EQ with variable Frequency. It smoothen the reverb as we need it. It depends on our requirement.
This is the proportion of dry and mix Signal. This is the ratio between dry signal and wet signal, which can be set by us.
Different Parameters are used differently. Some Songs require larger Decay Time to give it an integral part of the song, where as some require lesser decay time.
In Snares, we can use higher Pre-delay to give it a tighter and Fatter Sound.
Whichever way you use it depends on your creativity and requirement of Audio.
Generally, Reverb can be used in Send Channels with full wet signals and then with the help of sends we can control reverb on a particular Channel.