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Subtitle Editing

What This Solves

AI subtitles can already reach a high level of accuracy, but they can never be 100% perfect:

  • The occasional word is recognized wrong (homophones, dialect, specialized terminology)
  • A sentence is cut too short or left too long, which gets in the way of studying line by line
  • The translation quality is not good on certain sentences

Aelano’s subtitle editing lets you fix the subtitles in place, into the shape you want — without exporting to another tool, and without having to accept the AI’s default result. Once you fix a subtitle the translation follows along and updates, your changes are saved, and the next time you study that content you get the corrected subtitles straight away.

Situations where this fits:

  • The AI missed or misheard a key word
  • A sentence is too long and you want to split it in two to study line by line
  • Two sentences were cut apart but should be one, and you want to merge them
  • You want to replace the AI’s translation with a more idiomatic wording

Entering Edit Mode

In the player, long-press or right-click a subtitle line and you will see an “Edit” option. Tap it to enter subtitle editing mode.

In edit mode, you can:

  • Change a word
  • Add or delete a word
  • Merge adjacent words
  • Split a sentence
  • Merge adjacent sentences
  • Have the AI re-segment the passage

Word-Level Editing

Once you are in edit mode, every word can be tapped individually.

Changing a word

Select a word → an edit icon appears → change it to the correct spelling or word.

Adding a word before or after

If a word was missed: select an adjacent word → choose “Add before” or “Add after” → type in what you want to add.

Merging the selected words

Sometimes a single word gets incorrectly cut into several pieces (compound words, liaison, and so on). Select several adjacent words → tap “Merge selection”, and they become one word.

You can only merge adjacent words. To merge non-adjacent ones, delete what is in between first, then merge.

Deleting a word

Select a word → delete. This is mostly for words the AI recognized that were never there.

Sentence-Level Editing

Merging two adjacent sentences

The AI cut a line too finely and it should really be one sentence? Select the two sentences → tap “Merge”, and they become one.

Splitting a sentence

A sentence too long, tiring to read, getting in the way of line-by-line study? Tap the position between two words where you want the break, and the sentence splits into two at that point.

AI splitting

If you do not want to tap through every break yourself, you can have the AI re-segment for you. Tap “AI split” and the AI re-cuts the passage at sensible semantic pauses.

Good for: when a whole passage feels badly segmented and you do not want to fix it sentence by sentence.

Saving and Translation Sync

Every time you save, you will see:

  1. Subtitles updated successfully: your changes have been saved to the cloud
  2. Updating translation…: the sentences you changed have their translations updated automatically

Once the translation update finishes, the new bilingual subtitles take effect.

If you only want to keep the changes to the original text and do not want a re-translation, there is currently no way to turn the automatic re-translation off. If you feel strongly about this, send feedback.

A Few Practical Tips

  • Leave the sentences the AI got right alone: most sentences from the AI are correct, and there is no need to go through them one by one. Only change the errors you actually notice.
  • Use AI splitting in bulk when sentences are too choppy: if a whole passage feels badly segmented (a podcast where people talk fast and the AI cuts too densely, for example), one tap on “AI split” re-cuts it, which is far less work than fixing each sentence.
  • Listen to the line twice before changing it: a lot of “the AI got it wrong” turns out to be you mishearing it — listen twice more, and change it only if the AI really was wrong.
  • Specialized terms and names of people and places are the worst offenders: medicine, law, technology, brand names, and foreign personal names are where the AI tends to slip, and those are worth a dedicated pass.
  • Do vocabulary extraction after you finish editing: if you changed key words in the subtitles, Aelano’s automatic vocabulary extraction may need to run again. Check that the vocabulary list looks right.

Common Questions

Do my subtitle edits sync across devices?

Yes. Subtitle changes are saved in the cloud and sync across devices.

Will other people see my changes?

No. Changes you make to subtitles in your own library only affect you. Even for a channel you subscribed to from a content source, your edits only change the version you see.

Is there undo or a history?

There is currently no full version history. It is worth double-checking before you make a change, to avoid editing something by mistake.

Can edit mode make bulk changes (replacing every occurrence of a word, for example)?

Right now changes are made one at a time. If a word was misrecognized several times across an episode, you have to fix each occurrence. Bulk replacement is under consideration.

The re-translation is too slow or inaccurate?

If the re-translation does not come out well, you can edit the translation by hand (tap the corresponding translation line to enter editing). Translations you have edited by hand are not overwritten automatically.

Can the subtitle timeline be adjusted?

The timeline follows the original audio and cannot be offset by hand. If subtitles and audio do not line up, it is usually a segmentation problem, which you can solve by merging or splitting sentences, or by having the AI re-segment.

If I make a mess of it, can I restore the AI’s original?

There is currently no “restore the AI original” switch. If you edited something wrongly, you can use AI splitting to have the AI re-cut the passage, then adjust by hand.

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