A tremolo pedal is an effects pedal used by guitarists and bassists to create a pulsating, wavering effect on their sound. It works by rapidly varying the volume of the signal, creating a tremolo effect. Tremolo pedals are often used to create a variety of sounds, from subtle, shimmering effects to more pronounced, throbbing pulsations.
Tremolo pedals can be used to add depth and interest to a guitar or bass sound. They can also be used to create a variety of special effects, such as simulating the sound of a rotating speaker or creating a seasick effect. Tremolo pedals are a versatile and powerful tool that can be used to create a wide range of sounds.