In this guide
Identify the click in context before editing. Repair a very short isolated event or audition a de-clicker on a representative passage; compare whole words and room tone at the same playback level. A click-removal tool can mistake consonants for damage.
Mouth clicks and lip smacks can stand out in a close-mic podcast, audiobook, voiceover or sung vocal, especially after compression brings quiet sounds forward. For a few isolated clicks, zoom in and repair or reduce each event on a working copy. For frequent clicks, audition a de-clicker on a representative passage and check that it has not softened the words.
Start by listening to a complete sentence, not just a magnified waveform. A sharp transient could be a click, a useful consonant, a plosive or an edit boundary. Treating the wrong one can make speech harder to understand.
Choose the right repair
| What you hear | First approach | What to check |
|---|---|---|
| One short click between words | Try a very short repair or a gradual local volume dip. | Room tone and smooth boundaries. |
| Click overlapping a consonant | Try a short repair on a copy or use an alternate take. | The complete word, especially its attack. |
| Clicks throughout a long recording | Audition a de-clicker on a passage with speech and pauses. | Soft consonants, natural voice texture and missed events. |
| A click exactly at a cut | Inspect the edit and try a short fade or crossfade. | Both sides of the edit and its timing. |
A low-frequency thump on P or B calls for a different approach: see the plosive guide. For a click introduced by a splice, follow the edit-boundary guide.
Repair a single mouth click in Audacity
- Save the original. Duplicate the track or work in a separate project. Listen through the sentence and mark the event, including the word before and after it.
- Zoom in and make a tiny selection. Find the audible click in the waveform, then select the shortest damaged region. A visible spike alone is not proof of a mouth click; compare the surrounding speech.
- Try Repair. Choose Effect → Noise Removal and Repair → Repair. Audacity estimates the selected audio from its surroundings. Its Repair documentation limits the selection to 128 samples and requires surrounding audio; it also says the effect cannot be used on time-stretched clips. If the selection is too long, do not force it by cutting time from the recording.
- Listen in context. Play several seconds across the repair and compare with the original at a similar volume. If the click remains or the word sounds altered, undo and adjust the selection. A repair is an estimate, not recovery of the original sound.
If the sound is in a pause and too broad for Repair, a gentle volume dip with short transitions may be less distracting. Keep the pause in place and avoid making the background suddenly silent. If the click overlaps a word, the same volume dip also reduces speech; an alternate take may be the cleaner choice.
When to use a de-clicker
For repeated events, a de-clicker can be faster than repairing each one. Work from the original and test a passage containing quiet speech, sharp consonants, breaths and pauses. Listen to the processed version against the original and, where a tool offers it, audition what it removed. Lower the strength or undo if consonants become dull or speech develops artifacts.
Audacity's general Click Removal effect requires a selection longer than 4,096 samples; it is not the same as its short Repair effect and will not catch every click. Its manual warns that more aggressive detection can damage wanted audio. A specialized mouth de-clicker is another option, but evaluate the result rather than assuming a preset understands every voice.
Can a noise gate or AI isolation remove mouth clicks?
A gate responds to level, not to whether a sound came from a mouth. A click in a quiet pause might be reduced, while a louder click or one overlapping speech can pass through. A gate can also cut quiet word endings; use the browser noise gate only as a level-based comparison, not as a dedicated mouth-click remover.
Saturalabs source isolation is intended to separate audible sources. A mouth click is part of the voice recording and may follow the isolated voice; it is not guaranteed to disappear. If another distinct sound competes with the voice, the cleanup method guide helps choose a more appropriate starting point. AI downloads require an account and sufficient credits.
Prevent clicks in the next recording
Record a short test at your normal speaking level and listen on headphones. If mouth noise dominates, try moving the microphone slightly farther away or speaking a little across it, then compare voice tone and room noise. Keep water available and allow natural breaks. Avoid relying on one trick: microphone placement, delivery and the room all affect what the mic captures.
Save a second take of difficult phrases. When editing to picture, preserve the original start position and duration; a gain dip or short repair does not require closing the gap. After export, check sync and the complete final mix using the video audio replacement guide.
Common questions
Should I remove every mouth sound?
No. Listen at a normal playback level and remove sounds that distract from the performance. Over-editing can make speech feel unnatural or remove useful detail.
Why did my click remover change a T or K sound?
Speech contains short, sharp consonants that can resemble clicks to a detector. Reduce the processing, repair a smaller region, or retain the original word if the treatment changes it.
Is a mouth click the same as a breath?
No. A click is usually a brief transient; an inhale lasts longer. For a distracting inhale between phrases, see how to reduce breathing sounds while preserving the pause.