Workflow

Short Drama Dubbing

Vertical short drama runs on volume and speed — eighty episodes of ninety seconds, produced in weeks, distributed in several languages. The bottleneck is almost never shooting. It is getting the dialogue tracks made and kept consistent.

Why this works here

Consistency across eighty episodes

The lead's voice must be identical in episode one and episode eighty, filmed and dubbed weeks apart. Character cards make that structural rather than a matter of someone remembering which actor was booked.

Turnaround measured in hours

Short-drama production schedules do not have room for booking sessions per episode. A rewritten scene can be re-dubbed the same afternoon, which is the only way the format's schedule works.

Subtitles from the same source

Because the captions come from the script rather than from transcription, they are correct and already synchronised. For a format distributed across platforms that each want their own caption file, that saves a genuine amount of work.

Cast size is not a cost

Short drama scenes are dialogue-dense with a rotating supporting cast. Adding a fifth speaking part costs nothing here, where in a recording workflow it costs a booking.

Voices that suit this kind of work

Cass

Cass

Seventeen and furious about it, in a good way

femaleteenen-USteenmodern
Ashford

Ashford

Velvet-voiced villain who apologises before he ruins you

maleadulten-GBvillainsmooth
Seraphine

Seraphine

Court princess whose politeness is a weapon

femaleyoung-adulten-GBroyalfantasy
Tess

Tess

Australian lead with a flat, dry delivery

femaleyoung-adulten-AUaccentdry
Ezra

Ezra

Visual-novel love interest with a two-second pause before honesty

maleyoung-adulten-USvisual-novelsoft
Hazel

Hazel

Mum voice: patient, then suddenly not

femaleadulten-USwarmdomestic
Indie

Indie

TikTok voiceover: fast, flat, faintly amused

femaleyoung-adulten-USsocialfast
Torvald

Torvald

Knight commander who gives orders that men actually follow

maleadulten-GBheroicfantasy

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How to do it

  1. Set up a project per series, not per episode

    The cast is the durable object. One project holding the character cards, with episodes as scenes inside it, keeps everything aligned.

  2. Cast the leads carefully, the rest quickly

    Two or three leads carry the series and deserve real auditioning. Supporting parts can be cast in seconds.

  3. Dub scene by scene

    Work in the same units the edit uses. It makes re-dubbing after a picture change cheap.

  4. Match the pace to the cut

    Short drama is cut fast. Raise the pace slightly above conversational so the dialogue sits inside the shots.

  5. Export stems

    Dialogue must be mixed under music and effects; a pre-mixed track is unusable in a fast edit.

  6. Generate captions per episode

    One SRT per episode, from the script, ready for every platform that asks for one.

What makes short drama different

Vertical short drama compresses a full melodramatic arc into episodes of sixty to one hundred and twenty seconds, released daily, across dozens or hundreds of episodes. The production model is closer to daytime serial television than to film: fast shooting, fixed sets, heavy reliance on dialogue to carry plot, and a schedule that assumes no step takes longer than a day.

That schedule is what breaks conventional post-production workflows. Booking a voice session per episode is impossible when episodes ship daily, and the format's international distribution means every series exists in several language tracks simultaneously.

Consistency is the production risk

In a series of eighty episodes, the audience hears the lead character more than any other element. Any change in that voice is instantly noticed and reads as a production failure, even when nothing else is wrong.

Recording workflows manage this by booking the same performer, which introduces availability risk. A character-card workflow manages it by making the voice a stored object: there is nothing to re-choose, so there is nothing to get wrong. On a long series that difference is worth more than the per-episode time saving.

Pace, and why dubbed dialogue sounds wrong

The most common complaint about dubbed short drama is that the voices sound detached from the picture. Usually this is pace rather than performance. Short drama is cut fast, with lines landing tight against shot changes, and dialogue generated at conversational pace floats inside those shots.

Raising the pace slightly and shortening lines in the translated script fixes most of it. The second fix is mixing: dubbed dialogue that is too clean and too present sits on top of the picture rather than in it, and a small amount of room tone under it does more for believability than any amount of re-performance.

Where the human still belongs

Two places. Translation and adaptation, which is a writing job requiring judgement about idiom and register that no pipeline should automate. And the emotional set pieces — the confrontation that the whole series has been building to — where a performance decision carries the scene.

A workable split for a commercial series: generate everything, then identify the five or six scenes across eighty episodes that actually matter and record those. It costs a fraction of full dubbing and protects the moments the audience is there for.

Building a series bible for voices

Short-drama production turns over people quickly — writers, editors and producers rotate between series, often mid-run. What survives the rotation is documentation, and a voice bible is the cheapest insurance a series can buy.

It needs very little: one page per recurring character with their voice, their pace, their resting emotional register, and any pronunciation fixes for names. Anyone joining in week six attaches new lines to the existing character rather than making a fresh choice, and the lead sounds the same in episode eighty as in episode one.

The failure this prevents is specific and common. A new editor, working fast, picks a voice that sounds right to them for a character they have not heard much of. It is not quite the same voice. Nobody notices during production and every viewer notices on release.

Quality control at volume

Producing an episode a day makes listening to everything impossible, so the checking has to be targeted. Three checks catch most problems: play the first fifteen seconds of every episode, because that is where drop-off happens; listen to every scene where a new character appears, because that is where casting mistakes hide; and spot-check any scene that was re-dubbed after a picture change, because that is where sync drifts.

Everything else can be sampled. The point is to spend your limited listening time where errors are both likely and expensive, rather than distributing it evenly and catching nothing.

What it costs

Free

$0 / month

Enough to finish a short scene and hear what your script sounds like cast.

  • 10,000 characters every month — the quota resets, it is not a one-time trial
  • 2 cast members per project
  • 5 minutes of finished audio
  • Exports carry a short CastDub watermark
Start free

Studio

$29 / month

For serialised work: long-running dramas, audiobooks, dubbing pipelines.

  • Unlimited cast members per project
  • 200 minutes of finished audio a month
  • Line-by-line emotion control
  • Multitrack and stem export (one WAV per character)
  • 3 voice clone slots
Choose plan

Team

$69 / month

For a studio where a writer, a director and an editor touch the same project.

  • 5 seats, shared projects and shared character cards
  • 500 minutes of finished audio a month
  • 10 voice clone slots
  • Priority rendering queue
Choose plan

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Frequently asked questions

Can this lip-sync to footage?

No. It generates dialogue at the pace you set; matching it to mouth movement is an editing job, and for material shot in another language it is approximate at best. Most short-drama localisation accepts loose sync because the format is consumed with subtitles anyway.

Does it translate?

No. Translation is a separate step and should be done by someone who understands the register — short drama dialogue is idiomatic and machine translation of it reads badly. Bring the translated script and dub from that.

Which languages are supported?

English today. Japanese, Spanish, Brazilian Portuguese and Korean are the next four, chosen because those are the largest markets for this format outside China. Until then, English dubs plus subtitles is the practical route.

How do I keep a character consistent when a new writer joins?

They attach lines to the existing character card rather than choosing a voice. This is the single most important process rule for a long series, and it is worth writing into your production doc.

What plan does a series need?

Studio at minimum — unlimited cast members and stem export are both required for this workflow, and eighty ninety-second episodes is around two hours of finished audio. Team makes sense once more than one person is producing episodes.

Can I use it for the original-language version too?

Yes, and some producers do for pickups and for characters whose actor is unavailable. Be aware that mixing recorded and generated dialogue for the same character in the same series is noticeable; keep it to separate characters.

Cast your first scene tonight

Paste a script, let CastDub assign a voice to every character, and export a finished drama.

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