Some variation is natural in speech, because people get louder and softer as they talk. Uneven volume is different. It is the jump from a quiet section to a loud one that makes a listener reach for the volume knob. The fix is to match the levels between sections while keeping the voice expressive.
Find the cause
Listen for patterns. If the speaker moves closer or further from the microphone, the level changes with their position. If the level jumps at the edit point, two takes were recorded at different levels. If one passage is consistently quiet, the speaker probably turned away or spoke more softly. Each cause has a different fix.
Level the clips by hand
- Start with the loudest section, and set it to a comfortable level.
- Raise or lower the quieter sections so they sit near it.
- Use small gain changes, and check each join by listening.
- Leave the natural lift and drop of emphasis in place.
Use gentle levelling
If the variation is still large after hand levelling, a gentle levelling tool can smooth the remaining differences. Keep the amount low, or the voice will sound compressed and lifeless. The levelling guide shows how to apply levelling across two or more speakers.
Check the peaks and the quiet parts
After levelling, check that the loudest moments do not clip, and that the quiet passages are still clear on a phone. If the quiet parts are now noisy, reduce the background noise before raising them further.
Prevent the problem
Keep the microphone distance steady, use a marker on the desk, and record a short test at the start of each session. Speak at a steady strength, and record each section with its own check before moving on.
Limits
Levelling cannot fix every problem. A very quiet take with a lot of noise will sound noisy when raised, and a loud take with clipping cannot be made clean. In those cases, re-recording is the better choice.
Try it free: Vocal Checker
Spot clipping, noise, rumble and level problems. Runs in your browser, nothing is uploaded.
Frequently asked questions
Should I make the whole recording the same level?
Level the sections so they sit together, but keep the natural emphasis of the voice.
Why does the volume change at every edit?
Two takes were recorded at different levels. Match them by hand before levelling.
Will levelling make my voice sound squashed?
Only if you use too much. Keep it gentle and listen for flatness.
Is it better to re-record?
If the take is very quiet, very loud or clipped, re-recording usually sounds better.
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