Speech clipping on a lavalier microphone: what to know

Your lavalier microphone may sound clear until you raise your voice, laugh, or turn toward it. Then speech gets harsh, crackly, or cut off. That sound is often clipping, which happens when part of the audio signal is too loud for the microphone or recording path to capture cleanly.

Test the mic outside your usual recording app first. The Microphone Test shows input activity and a waveform, and lets you record a short sample to play back. This can help narrow down whether the mic, its gain, or the app is causing the problem.

Test the lavalier microphone

1. Open the Microphone Test and press Start microphone. Allow microphone access when your browser asks.
2. If you have more than one input, select the lavalier microphone from the device list. Speak at your usual recording distance and watch the signal meter and waveform.
3. Say a normal sentence, then repeat it at the loudest level you expect to use. Notice whether the waveform suddenly looks flattened at its loudest parts, or whether the sound becomes harsh.
4. Press Record 5 seconds, speak at normal and louder volumes, then play the recording back. If the test sounds clear but your recording app clips, the problem is likely farther along the recording path.

For a clean baseline, turn off Noise suppression, Echo cancellation, and Auto volume in the test. These processing options can change the sound, so compare with them off first and enable them only if you need them.

What the result means

The test sounds clear, but your recording app clips

The microphone can produce a clean signal in the browser, but that does not guarantee every app uses the same input or settings. Check the selected microphone and input level in your recording app. If you use a wireless lavalier, also check the transmitter and receiver levels.

The test sounds distorted when you speak loudly

The distortion may be happening before the sound reaches the browser. The capsule, wireless transmitter, or an audio interface can overload even if the app's recording level is low. Lower the mic or transmitter gain and repeat the test.

The waveform looks flattened at the loudest parts

A flat-looking peak can be a sign that the signal is being clipped, but the browser waveform is not a certified clipping meter. Distortion can also happen in the microphone or hardware before the browser receives audio. Listen to the playback and compare it with your recording app.

The meter barely moves, but the recording still sounds rough

The signal may be quiet at the browser input while a different part of your setup is distorting it. Check the microphone's own controls and any wireless transmitter or interface. Raising the app's input level alone may make the recording louder without removing distortion already captured.

The test is clean at one distance but clips when you move closer

The mic may be receiving too much sound at close range, or rubbing against clothing as you move. Keep it a little farther from your mouth, angle it slightly away from direct airflow, and secure the cable so it cannot brush the capsule.

How to fix it

1. Lower the input gain. Reduce the microphone, transmitter, receiver, or interface gain a little, then repeat the loudest part of your test. Make changes in small steps so speech stays clear without becoming too quiet.
2. Move the mic away from your mouth. Try clipping it about 6 to 8 inches below your mouth, then adjust based on the mic and your voice. Angle the capsule to the side rather than pointing it directly at your breath.
3. Check for clothing contact. Make sure the capsule is not rubbing on a collar, necklace, hair, or jacket. Secure the cable with a clip or a small loop so movement does not tug the microphone.
4. Check the recording app's input. Select the lavalier rather than a laptop or headset mic, and reduce the app's input level if loud words distort. If the app has automatic gain control, try turning it off and compare a new recording.
5. Set the system input level. On Windows 11, open Settings › System › Sound, select the lavalier under Input, and adjust its input volume. On macOS, open System Settings › Sound › Input, select the mic, and adjust the input volume if the control is available.
6. Check microphone permission on your phone. On Android, open Settings › Apps, select the browser or recording app, then open Permissions › Microphone. On iPhone, open Settings › Privacy & Security › Microphone and allow the app you are using. Permission affects access, not gain, so also check the app and any mic controls.
7. Reconnect the hardware. Reseat the plug, adapter, receiver, or USB connection. For a wireless mic, check the transmitter battery and confirm that the transmitter and receiver are paired and set to the same level or mode.
8. Compare one part at a time. Record a short sample with the lavalier connected directly, then test with the adapter, receiver, or interface you normally use. If distortion appears only after adding one part, inspect that connection or its gain setting.

If you are changing levels for a particular recording setup, the microphone peak level check explains how to compare loudest input levels before and after an adjustment.

When the microphone or hardware may be faulty

Test the lavalier on another compatible device, using the same speaking distance and a modest input level. If the sound stays distorted across devices, even when you speak quietly and the mic is not touching clothing, the capsule or cable may be damaged. If moving the cable makes the sound crackle or cut out, the cable or connector is a likely cause.

For a wireless system, compare the transmitter and receiver with another compatible mic if you can. If distortion follows the lavalier, check its warranty or replace it. If the problem follows an adapter, receiver, or interface, have that part inspected or use a known-good replacement.

The Microphone Test runs in your browser. Its short recording stays on your device, and nothing you record is uploaded.