nodalbloom turns the pitch content of a voice recording into a Chladni-style pattern: the shapes sand makes on a vibrating plate, computed as mathematics. Your recording is analysed on your own device. Sample voices: Wikimedia Commons, public domain or CC0 (Alain de Botton, Brewster Kahle, Vera de Kok, Frithjof Schuon, Steve Cross, a baby recording). This is a keepsake, not a medical, legal or therapeutic product: see the
disclaimer.