DelayCalcFeatures Enter the desired tempo using the numberPicker; click the top half of the number to raise it, the lower half to lower it. Tempos can be between 40 and 300. DelayCalc shows the digital delay settings for that tempo. If you donÕt know what digital delay is, then youÕre probably not a musician and have no use for this utility.Click the TAP TEMPO button to enter a tempo by tapping it in. Once you think youÕve accurately entered the right tempo, which is displayed by the numberPicker at the top of the window, click the COMPUTE button to see the appropriate delay settings for that tempo.