Monitoring starts automatically when you open this page (browser will ask for microphone access the first time). Pick the audio input that carries your synth return; the meter shows level and audio plays on your default PC playback. Use the Volca Keys knobs and piano (Web MIDI out) locally — no relay.
Chrome or Edge. Sends note on/off to a chosen MIDI output. White keys fill the width; − / + shift octaves.
Same Korg CC map as the Player page. Sends to the MIDI output above (channel 1). Volca global MIDI RX ShortMessage must be ON.
Pick your Volca MIDI output above to use the knobs.
Computer keyboard (US QWERTY, KeyboardEvent.code):Z…, chromatic octave from the current base C (follows octave buttons). Ignored while typing in inputs or selects.
Starting Web MIDI…