This lesson explains equalizers. Equalizers or in short EQs are audio processing effects that most usually have more than one filter. These filters are used to alter the spectral balance of audio signals.


This lesson explains dynamic audio effects. Dynamic audio effects are used to control the amplitude of audio. These are compressors, limiters, gates and expanders.

Time Delay

Time delay is an audio signal processing technique and an effects unit which records an input signal to an audio storage medium, and then plays it back after a period of time. This lesson explains the time-delay based audio effects. Most used are: reverb, delay, chorus, flanger and phaser. All of these produce the desired effect by adding something to the original dry signal and thus can be used on return tracks


This lesson explains various special audio effects. This most often include a vocoder, distortions, stereo processors, pitch shifters and various emulations.

Audio Processing 

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