SPASM — a real-time articulatory singing synthesiser with a Kelly–Lochbaum-style tract, plus a nasal branch and a proper radiation model at the lips.

whale throat model

keys

keybaord triggers

Kelly–Lochbaum Vocal Tract Explorer Kelly–Lochbaum Vocal Tract Explorer Waveguide mesh simulation of the 1-D acoustic tube model · Keyboard Control Active Tract Geometry & Wave Propagation Tube Parameters Length (cm) 17.5 Sections 44 Glottal Area 0.10 Lip Area 0.80 Constriction 0.30 Constrict Pos 0.50 Vowel /a/ Vowel /i/ Vowel /u/ Open Tube Closed Tube Excitation…

Kelly-Lochbaum Tract Kelly–Lochbaum Tract 44-section scattering ladder · 2× oversampled · AudioWorklet glottis lips drag to reshape the bore start audio Z − C3 base + X hold letter keys to voice · Z / X shift octave Each junction reflects by k = (A[i]-A[i+1]) / (A[i]+A[i+1]), area ∝ diameter². One-multiply scattering: w = k*(R…

Kelly-Lochbaum Tract Kelly–Lochbaum Tract 44-section scattering ladder · 2× oversampled · AudioWorklet glottis lips drag to reshape the bore start audio Each junction reflects by k = (A[i]-A[i+1]) / (A[i]+A[i+1]), area ∝ diameter². One-multiply scattering: w = k*(R – L), then R→R+w, L→L+w. Reflections are smoothed per block for click-free reshaping. Swap the Rosenberg source…

Oscilloscope Visualizer Pause/Play Save Frame FPS: 0

Audio Processor Template AUDIO PROCESSOR – USER MANUAL × TEST Audio Processor Template PLAY STOP REC UPLOAD DOWNLOAD HELP SOURCE URL: MASTER CONTROLS OUTPUT LEVEL L R -∞ dB DRY/WET MIX 50% OUTPUT GAIN (dB) 0.0 dB

Ripple Controller DETECTOR READOUT SCALE Position X: 256 Position Y: 256 Amplitude: 0.00 Direction: 0° Velocity: 0.00 Gradient Mag: 0.00 Energy: 0.00 Peak/Trough: – Triggers: 0 Threshold: 20 Smoothing: 0.70 AUDIO SYNTH Click → Trigger Note Click Y → Pitch | Click X → FilterFM IndexResonance Detector Modulates: Amplitude → Vibrato Velocity → Filter Sweep…