Effects

Overdubbing:

Recording a new musical part over a prerecorded track

Double tracking:

Audio technique in which a performer sings along with a preredcorded performance, making a richer, fuller overall sound

Chorus:

An effect that slightly detunes a signal, playing this alongside the original signal.

Flanger:

Originally achieved by using two tape machines playing the same recorded singnal, but synchronised with each other - grabbing the tape reel to slow it down, and letting go again would create this flanger effect, varying the timing and pitch of the signal. Modern technology uses an LFO (Low Frequency Oscillator/oscillation) to adjust the delay time of the duplicated signal.

Phaser:

Subtler than flanging, creating a 'shimmering'effect 

Compression:

Reduces the dynamic range of a musical part, making it more suitable for recirded media and broadcasting. It is created by setting the threshold, by which the compressir acts, and reducing the ratio, which minimizes the volume of the signal. The attack control determines how quickly the compressor starts to work after the treshold has been set. The release option controls how quickly the compressor stops reducing the signal level after the treshold falls below 

Compression:

Reduces the dynamic range of a musical part, making it more suitable for recirded media and broadcasting. It is created by setting the threshold, by which the compressir acts, and reducing the ratio, which minimizes the volume of the signal. The attack control determines how quickly the compressor starts to work after the treshold has been set. The release option controls how quickly the compressor stops reducing the signal level after the treshold falls below