Micro
Microphone static, hum or buzzing
A steady hum or hiss shows up on the test above as a high background noise level (above about −45 dBFS). Here's how to find the source and remove it.
Đã xem lại 23 tháng 10, 2026
Bắt đầu với một bài kiểm tra nhanh
Các bước
- 1
Lower the gain, get closer
High gain amplifies hiss. Lower the input level and move closer so your voice stays loud while the noise drops.
- 2
Check the cable
Wiggle the cable while watching the meter. Crackles mean a damaged cable or loose connector.
- 3
Unplug the charger
Laptop chargers can add a hum through the headphone jack or USB. Run on battery to compare.
- 4
Try another USB port
Front-panel and hub ports can be electrically noisy. Use a rear port on a desktop.
- 5
Move away from interference
Phones, routers, monitors and power bricks near the mic or cable can cause buzzing. Move them away.
- 6
Use noise suppression
Call apps and the browser's noise suppression remove steady hiss well. Compare with "Call vs raw" above.
Vẫn chưa được?
- A hum at a steady low pitch often comes from a ground loop between devices on different power outlets. Plug them into the same power strip.
- Disable audio enhancements in your system's sound settings and test again.