I did some modifications to
TSG/delay/read m interp: It now interpolates the input signals, so that removes any stepping from the modulation and drastically reduces noise at the expense of a tad higher CPU load.
I also added a phase output to the
TSG/fx/tapedelay. It ramps from 0..64 in sync with the delay and you can use it to blink LEDs. Take a look at the help patch. Basically you only have to compare it to a fixed value (e.g. with
math/>c) to get a boolean signal that is in sync with the delay.