Stereo Sound, Speaker & Frequency Sweep Test
Verify that both Left and Right speakers or earbuds are operating correctly, identify driver rattling, and test your auditory frequency range.
Speaker & Headphone Stereo Test
Test Left/Right channel separation, binaural sound staging, and frequency sweep response.
Ready to Test Speakers & Headphones
Click below to start testing your Left and Right audio channels, stereo pan separation, and frequency response range.
Acoustic Frequency Sweep & Bass Range
Run an automated sweep from deep sub-bass (20Hz) to ultrasonic treble (20,000Hz) to diagnose driver rattle or cabinet buzz.
๐ง Why Stereo Channel Testing Matters
When playing competitive FPS games (Valorant, CS2, Call of Duty) or listening to high-fidelity music, inverted stereo channels can confuse audio spatialization, making footsteps sound like they are coming from the opposite direction.
Testing with isolated Left and Right chimes confirms your headphone orientation and audio interface channel routing.
๐ Frequency Range Explanation
- 20 Hz โ 60 Hz: Sub-Bass (felt more than heard; tests subwoofers).
- 250 Hz โ 4,000 Hz: Midrange (human vocal frequencies and instrument bodies).
- 6,000 Hz โ 20,000 Hz: Treble and High Air (tests tweeter clarity and high-frequency human hearing limits).