Vibrato

Vibrato
Vibrato is a musical effect consisting of a regular, pulsating change in pitch. It is the sound of old cassette tapes and records that sound “out of tune.” Vocal and instrumental music often use it as a means of expression.

The effect consists of two factors: the amount of variation in pitch and the rate of pitch variation. In singing, it often occurs spontaneously at the end of a sentence.

Special effects pedals have been designed for the guitar. The pedal duplicates the incoming signal and then delays it. This delayed signal is then modulated, and the original signal is removed. If you don’t remove the original signal, you have a chorus pedal.

There aren’t very many effects pedals that offer only the vibrato effect. Usually, it’s part of a combination of other effects. Many chorus pedals have a vibrato function. Given how the effect is created, this makes sense—it’s essentially a chorus, but without the original signal.