How to get PD to respond only to certain frequency ranges in terms of using that info for a physical output such as vibrating modules? I am trying to build a device that will use small mics (electret?) as audio receivers then output a vibration based on a certain frequency range being present. I am quite new to PD, willing to learn but lacking in knowledge thus far. Could anyone help and let me know if this is even possible? Essentially, I would like to build a device that triggers a vibration pad when it detects a certain frequency eg 700-900 Hz.
Thanks in advance