Stereo Width Test
Test the stereo width and separation of your audio setup.
How wide is the stereo image
Stereo width is how spread out sound appears between and beyond the speakers, and testing it checks the separation of your setup. This plays sounds that reveal your system's stereo width and channel separation.
Play the test to hear your stereo width.
What stereo width reveals
A good stereo setup creates a wide, spacious sound image where instruments and effects are spread across a broad field, while a poor one sounds narrow and collapsed toward the centre. Testing width reveals how well your speakers or headphones and their placement achieve this separation. It can expose problems: speakers too close together or poorly positioned narrow the image, while issues with how the channels are reproduced can collapse the stereo effect. On a well-set-up system, test sounds should feel spread out and distinct between left and right; on a poor one, everything crowds toward the middle. Understanding stereo width matters for anyone arranging speakers, choosing headphones, or appreciating how audio is mixed, since the spaciousness of good stereo is a big part of why it sounds immersive and lifelike. Hearing how wide and separated your setup renders sound tells you whether you are getting the full stereo experience or a narrowed version of it, which often comes down to speaker placement worth adjusting.
Stereo Width Test FAQ
What is stereo width?
How spread out sound appears between and beyond the speakers — a wide image feels spacious with instruments distinct across the field, a narrow one crowds toward the centre.
What affects stereo width?
Speaker placement and separation mostly — speakers too close or poorly positioned narrow the image, while good placement creates a wide, immersive sound.
Is anything uploaded?
No. The sounds are generated in your browser.