Quick check: Run the related device test and keep it open while trying these steps.
Measure before adjusting
Start the microphone test, speak at your normal distance and record a sentence. If the meter barely moves and playback is faint, the input itself may be too low. If this recording sounds healthy but callers hear you faintly, check the microphone level or automatic gain setting inside their call app instead.
Move closer and aim correctly
A microphone several feet away captures a quieter voice and more room sound. Move it closer without putting it directly in the path of breath. Speak toward its intended pickup side; some desk microphones are side-address, while others are end-address. Check the manual when the capsule orientation is unclear.
Adjust one gain control at a time
Open Windows Settings → System → Sound → Input, select the correct microphone and adjust its input volume. If an audio interface or mixer controls the mic, set its hardware gain there first. Raise gain gradually while recording short clips. Too much gain can distort loud syllables; software gain cannot restore detail that was never captured.
Avoid solving one problem by creating another
A noise gate set too aggressively can make quiet speech disappear even when the microphone works. Temporarily disable optional voice processing in your recording software while troubleshooting. Compare the browser recording with the same sentence in that software. If the browser is clear but your recording is quiet, the difference lies in the app’s routing or filters.
After each change, test the device again. Change one setting at a time so you can identify what helped.
Further reference: Official device or browser documentation ↗