Practical guide

Clean dialogue without hiding an unclear source

Last materially reviewed 2026-09-25

Quick answerImprove intelligibility, but do not use cleanup as a reason to guess unclear words or discard the original audio.
What to know

Listen before applying a filter

Identify the actual problem: constant background sound, clipping, room echo, low level or overlapping speakers. These are not equivalent. A generic cleanup control may help some material and harm other material. Keep an untouched source so you can compare the result instead of judging a processed version in isolation.

What to know

Check the words that matter most

Listen to names, numbers and quiet qualifications after processing. A voice that sounds smoother may have lost consonants or become unnatural. Do not let a caption fill in what you cannot actually verify. If the source remains unclear, choose another passage, obtain a better recording or hold the line for review.

What to know

Keep music subordinate to speech

Use music only when it supports the clip and you have the appropriate rights. Compare the output with and without it. If the viewer needs to strain to hear the instruction, remove or reduce the competing layer. A fashionable track is not a requirement for a useful business short.

What to know

Deliver the reviewed mix, not the editor setting

Check the actual export at a normal listening level on practical playback equipment. Note any remaining limitation in the handoff. We do not claim measured loudness compliance or a universally correct setting here. For specialist delivery specifications, use the relevant measurement tools and qualified audio review rather than a visual slider position.

What to know

Do not confuse louder with clearer

Increasing level can make noise and distortion more prominent along with the voice. Compare intelligibility rather than only perceived loudness. If two speakers overlap, a cleanup effect may not recover the missing words reliably. Preserve uncertainty in the edit notes and choose a clearer passage when possible. A confident caption should never be used to conceal the fact that the underlying speech could not be verified.

Continue when useful

Next: Correct captions in the order that protects meaning

Fix names, numbers, negatives and conditions before polishing the caption style.

Open Correct captions in the order that protects meaning →

Sources used for this page

These records support the facts and comparisons above. Merchant-controlled records are labelled so you can separate product claims from independent evidence.

  1. Submagic documented editing workflow — Merchant documentation · care.submagic.co · Merchant-controlled · checked 2026-09-25