One Earbud or Speaker Quieter Than the Other
A quieter side is usually a setting or a blocked speaker, not a dead driver. Confirm which side is affected with the left right speaker test, then work through the fixes below.
By Ritvik Kudalkar, published . A 6 minute read.
Find the quiet side first
Play tones on each channel separately to compare them.
Step 1: Is It the Device or Your Ears?
Swap the earbuds between your ears, or turn the headphones around. If the quiet side follows the earbud, the earbud is at fault. If the same ear is always quieter, the cause may be your hearing, such as ear wax build-up in the ear canal, and a doctor or audiologist can check it.
Step 2: Centre the Balance Setting
Every major system has a left/right balance control that is easy to move by accident:
- Windows 11: Settings > System > Sound, select the output device, and make sure Left and Right show the same value.
- macOS: System Settings > Sound > Output, select the device, and centre the Balance slider.
- iPhone and iPad: Settings > Accessibility > Audio & Visual > Balance.
- Android: Settings > Accessibility > Audio (or Hearing enhancements on Samsung) > Left/right sound balance.
While you are there, make sure Mono audio is off, so each side gets its own channel.
Step 3: Clean the Speaker Mesh
Earwax and skin oil collect on the earbud mesh and muffle the sound, starting with the treble. Use a dry, soft toothbrush or a cotton swab to brush the mesh gently, with the mesh facing down so debris falls out. Blu-Tack or putty pressed lightly and lifted off also works. Don't use water or push anything sharp through the mesh.
For laptops and phones, brush or use short bursts of compressed air on the speaker grille.
Step 4: Check the Fit and Ear Tips
An earbud that doesn't seal properly loses a lot of bass and volume. Try the next ear tip size up on the quiet side, or re-seat it. Many people need a different tip size for each ear.
Step 5: Reset Bluetooth Earbuds
True wireless earbuds connect to each other as well as to your phone, and the link sometimes gets out of sync. Remove the earbuds from your phone's Bluetooth list, reset them using the maker's instructions (usually holding the case button or both touch panels), and pair them again. Also update the earbuds' firmware in the maker's app.
Step 6: Check Cables and Plugs
For wired headphones, push the plug all the way in. A plug that is partly out often loses one channel. Then play the speaker test sweep and gently flex the cable near the plug and where it splits. If the sound cuts in and out, the cable is damaged. Clean a dusty headphone jack with a wooden toothpick.
Step 7: Test on Another Device
Connect the headphones or speakers to a different phone or computer and run the test again. If the same side is still quieter, the driver is worn or damaged. Check your warranty, since most earbuds come with a one-year warranty and many makers replace a single bud.
Causes at a Glance
| Cause | Sign | Fix |
|---|---|---|
| Balance off-centre | Same side quiet on every pair of headphones | Centre the balance slider |
| Blocked mesh | Quiet and muffled, worse over time | Clean the mesh |
| Poor fit | Quiet with weak bass, better when pressed in | Change ear tip size |
| Bluetooth sync glitch | Started suddenly, earbuds only | Reset and re-pair |
| Damaged cable | Cuts out when the cable moves | Replace the cable or headphones |
| Worn driver | Quiet or distorted on every device | Warranty or replacement |