Stereo Pan Tester
Test stereo panning by moving a sound between left and right.
Sound across the stereo field
Stereo panning places a sound anywhere between the left and right speakers. This moves a test sound across the stereo field so you can hear it travel from one side to the other, useful for checking stereo setup and channel placement.
Play the sound and hear it pan left to right.
What panning testing reveals
Testing panning checks that your stereo setup is working correctly and placed as you think: a sound panned fully left should come only from the left, fully right only from the right, and centre from both equally, appearing to come from between them. This reveals problems like channels being swapped, one side not working, or speakers placed or wired incorrectly. It is also a nice demonstration of how stereo works — the illusion of a sound at a particular position between two speakers, created purely by how loud it is in each. Understanding panning matters for anyone setting up speakers or headphones, mixing audio, or troubleshooting why something sounds off. Hearing a sound move smoothly across the field confirms everything is connected and placed correctly, while any oddity — a sound stuck to one side, or centre sounds coming from the wrong place — points to a setup problem worth fixing.
Stereo Pan Tester FAQ
What does panning testing check?
That your stereo setup works and is placed correctly — a fully-left sound should come only from the left, centre from both equally, revealing swapped or faulty channels.
How does stereo create a sound between the speakers?
By how loud the sound is in each speaker — a sound equally loud in both appears to come from the centre, an illusion of position created purely by balance.
Is anything uploaded?
No. The sound is generated in your browser.