1. Upload a WAV speech file · 2. Extract a smoothed monophonic pitch track in the natural speech range · 3. Inspect the spectrogram and DAW-style piano roll · 4. Listen back to either original audio or MIDI, optionally for a selected region only.
Tip: Drag inside the piano roll to select a time range. Playback buttons will respect the selection and only play that part of the original audio or MIDI.