Headphone Test
Test your headphones or speakers with stereo, left-only, and right-only audio playback. Verify surround sound channels.
Headphone & Speaker Test
Select a channel to play a 440Hz tone. Make sure your volume is at a comfortable level before testing.
What to Check
- When playing "Left Only", sound should come only from your left ear/speaker.
- When playing "Right Only", sound should come only from your right ear/speaker.
- When playing "Stereo", sound should be equal in both ears/speakers.
- If left and right are swapped, your headphones may be worn backwards.
- If one side is significantly quieter, the driver or cable may be damaged.
How Does the Headphone Test Work?
- Make sure your headphones or speakers are connected and volume is at a comfortable level.
- Click a channel button (Left, Stereo, or Right) to play a 440Hz sine wave.
- The Web Audio API's StereoPanner controls which ear receives the sound.
- Listen to verify that each channel plays correctly.
Frequently Asked Questions
- What is 440Hz?
- 440Hz is the frequency of the musical note A4, commonly used as the standard tuning reference for musical instruments. It produces a clear, mid-range tone that is easy to identify in either ear.
- My left and right channels seem swapped. What should I do?
- First, make sure your headphones are worn correctly (L on left ear, R on right). If the channels are still swapped, check your operating system's audio settings for a 'swap channels' or balance option.
- Can this test check surround sound?
- This tool tests stereo (2-channel) audio. Browser-based surround sound testing is limited because the Web Audio API primarily supports stereo output. For full surround sound testing, use a native application.