A Mutli-Tap Echo effect has multiple, parallel delay lines called delay taps. Each path adds a delay with a different time. All these paths can be added together to create the overall effect. In general, the effect can have an arbitrary number of parallel delay taps.
This approach to creating the echo effect allows for precise control because each delay can be set to an independent time. Similarly, the relative gain for each path can be set independently.
One extension of the multi-tap echo, is the stereo echo. It also incorporates the basics of panning. The effect is created by using one delay tap panned to the left and one delay tap panned to the right.