Note that reselecting the same MIDI file will not refresh the output with new MIDI data; clear the file selector with ESC on the file picker before retrying to reset it.
Output will contain placeholder phonemes "baa" if no phoneme sequences are applied (see input box below). To use in DECtalk (the offline app or this browser-based port), add the line [:phone on] before pasting in one of the lines from the output box below.