( Fillers )
Cut every “um” without chopping a word
Cast lists every hesitation against the transcript it came from — counted per speaker, pinned to its timecode — and cuts the lot in one click. Each cut is snapped to a quiet point in the waveform, so the edit lands between the sounds instead of through them.
The difference between a button you trust and one you undo
Bulk filler removal has a bad reputation for a reason: a cut placed by timestamp alone clips the word next to it, and after the third chopped syllable you stop using the button. Cast places each cut at a quiet point between sounds — and when clean edges do not exist, it mutes the filler rather than leave you a click.
That is a claim you can verify in one afternoon with your own recording, which is why we lead with it.
“Like” and “so” are your call, not ours
Hesitations — “um”, “uh”, “mm” — are noises, not words, so they are flagged by default. Discourse markers like “like”, “so” and “you know” are real words as often as they are filler, so they stay off until you switch them on, word by word, in the dictionary.
You can add your own words, and keep a different dictionary per speaker — which is what makes cleanup practical on a two-host show where each person has their own tics.
- One click cuts them all
- Cuts snap to quiet points
- Mute fallback — never a click
- Per-speaker dictionaries
FAQ
01How do I remove filler words?
The Voice Editor finds them for you and lists them. Hesitations — "um", "uh", "mm" — are flagged by default and you can cut them all in one click. Discourse markers like "like" and "so" are detected too, but stay off until you switch them on word by word.
Read more →02Can I undo a cleanup afterwards?
Yes. Undo and redo work as normal, and separately, every cut and mute is listed under Recent edits with its own Restore. Because Cast never overwrites your recording, you can put back one filler word you removed twenty edits ago without losing anything you did since.
Read more →03Delete or Ignore — which one for fillers?
Delete cuts the audio out and closes the gap, so the episode gets shorter. Ignore mutes the audio but leaves the gap, so nothing after it moves. Both are reversible, and both remove the words from captions and exports.
Read more →04Can it also remove mouth clicks?
Yes. Mouth sounds between words are detected acoustically and flagged by default. Because the detection listens to the sound rather than matching a word list, it works in any language.
Read more →