Delay is the effect of signal delay relative to the original. Signal processing effect delay involves creating a copy of the signal and mixing this copy to the original signal in accordance with the settings of the plug-in or iron device.
The delay effect allows you to make the sound deeper and more voluminous. There are a huge number of plugins that allow you to create a delay effect.
The diagram below shows how the delay effect works.
The input signal is input to the plug-in (or instrument). A copy of this signal is created and mixed in a certain proportion and with a certain delay time (in accordance with the settings) to the original. Next, a copy of the signal enters the filtering unit, and then goes to the plug-in output.
If feedback is used, the processed signal is re-routed to the processing unit.
Main parameters of delay:
Input-input signal level.
Time (Delay) – delay time. Relative values (1/2, 1/4, 1/8, etc.) are commonly used, but exact values in milliseconds can also be used.
Feedback – the level of the signal that is re-fed to the plugin input. This is the so-called feedback.
Low cut and High cut – cut low pass and high pass filters.
Dry / Wet – the level of dry and processed signals.
Output – output level.
Delay is more of an artistic effect, allowing you to make the sound more natural.
There are many options for using the delay effect.
Here are the most commonly used:
1) A small value of Time < 30 MS. to expand and seal the sound
2) The average delay for a natural sound
3) Long delay to give the sound more depth and spatiality
4) Using ping – pong effect