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Web Audio
Work with Audio API
Oscillator Controls
Adjust frequency, volume, and waveform
Waveform Visualization
Real-time audio waveform display
Piano Keyboard
Click keys to play notes
Click the keys to play notes
Preset Sounds
Quick audio presets
Audio Data
Raw waveform data array
Play a sound to see audio data
Audio Status
Current audio state
Playing
No
Frequency
440 Hz
Volume
50%
Waveform
sine
Testing Tips
Automation hints
- ✓ Verify playing-status changes to "Yes" after clicking play-sound button
- ✓ Test frequency-slider and check current-freq updates in real-time
- ✓ Click piano keys (note-C4, note-D4, etc.) and verify audio-data populates
- ✓ Test waveform-select dropdown changes current-wave display
- ✓ Verify visualizer canvas is present and has expected dimensions
