Tutorials and Topics - Peabody Computer Music

Tutorial 28Processing:Delay lines with feedbackvery soft. You can give normalize~ a new peak input value to use, by sending a number ora reset message in the left inlet.• Turn audio off and close the Patcher window before proceeding to the next chapter.SummaryOne way to make multiple delayed versions of a signal is to feed the output of tapout~back into the input of tapin~, in addition to sending it to the DAC. Because the fed backdelayed signal will be added to the current incoming signal at the inlet of tapin~, it’s agood idea to reduce the output of tapout~ before feeding it back to tapin~.In a patch involving addition of signals with varying amplitudes, it’s often difficult topredict the amplitude of the summed signal that will go to the DAC. One way to controlthe amplitude of a signal is with normalize~, which uses the peak amplitude of anincoming signal to calculate how much it should reduce the amplitude before sending thesignal out.See Alsonormalize~tapin~tapout~Scale on the basis of maximum amplitudeInput to a delay lineOutput from a delay line226