Substituted consonants
The sounds Urdu does not have are the ones a tool will replace. Wrong letter, real word, changed meaning.
Sindhi subtitle generator
Sindhi subtitles, with the letters checked.
Generate an editable Sindhi caption track from your video, review the consonants that tools trained on Urdu tend to get wrong, then export a subtitle file or a captioned video.
The problem with Sindhi is the alphabet, not the language
Sindhi is written in an extended Perso-Arabic alphabet, and it is a large one. On top of the letters shared with Arabic and Persian it carries a set of its own, added to cover sounds those languages do not have, including the implosive consonants that give spoken Sindhi its particular texture.
That is where automatic captioning goes wrong, and it goes wrong quietly. A model or a keyboard layout built mainly around Urdu has no letter for those sounds, so it reaches for the nearest Urdu one. The result is not gibberish. It is a real Sindhi-looking word that is the wrong word, which is far harder to spot while skimming than an obvious error would be.
So the review pass for Sindhi is different from the review pass for Urdu. You are not mainly hunting for garbled text. You are checking specific consonants in specific words, and the fastest way to do it is to read the draft aloud against the audio rather than scan it silently.
What to check in a Sindhi draft
Names and places
People, villages, channels and sponsors. These are what viewers write in to correct.
Borrowed words
Urdu and English words spoken inside Sindhi sentences usually belong as they were said, not respelled.
When only some characters turn into boxes
Sindhi runs into a display fault that Urdu mostly does not. If a player is using a font built for Urdu or Arabic, that font may simply have no glyph for the Sindhi-specific letters. Most of the line renders correctly and a handful of characters become boxes, which looks like a broken file but is not one.
Rule out the file first. Confirm it is saved as UTF-8, since that is the more common cause of garbled subtitle text generally, and the subtitle encoding guide covers how to check and the one mistake that makes the damage permanent. If the encoding is right, open the same file in a second player. Correct text there points at the font, not the subtitles.
Script choice, and where the track goes
Perso-Arabic is the sole official script for Sindhi in Pakistan, so it is the default for a Pakistani audience. In India both Perso-Arabic and Devanagari are in concurrent use, with Devanagari the more common of the two. If your audience spans both, that is a reason for two tracks rather than one mixed file.
YouTube takes a subtitle track per language, so more than one can sit on the same upload; the guide to uploading a subtitle track walks through that path and the UTF-8 requirement. Short-form feeds ignore a subtitle file entirely, so those need the captions rendered into the picture, which the delivery guide covers.
For neighbouring languages, the Urdu subtitle generator handles Urdu-script video, the Roman Urdu caption generator covers Latin-script Urdu, and the Punjabi caption generator covers the Shahmukhi and Gurmukhi split.
Sindhi subtitle questions
Which script should Sindhi subtitles use?
Follow your audience's country. In Pakistan there is only one official answer, so that choice is made for you. In India the language is written both ways depending on region and schooling, which makes it a real decision rather than a default, and a wrong guess costs you readers rather than correctness.
Why do Sindhi subtitles come back with the wrong letters?
Sindhi uses an extended Perso-Arabic alphabet with letters for sounds that Urdu and Arabic do not have, including the implosive consonants. A tool tuned mainly on Urdu tends to substitute the nearest Urdu letter, which quietly changes the word rather than producing something that looks obviously broken. Those substitutions are the first thing to check in a draft.
Why does my Sindhi subtitle file show boxes in the player?
Usually a font problem rather than a text problem. A font built for Urdu or Arabic may have no glyph for the Sindhi-specific letters, so those characters alone render as boxes while the rest of the line looks fine. Check the encoding is UTF-8 first, then try the file in a different player before assuming the text is wrong.
What should I review in a Sindhi caption draft?
The Sindhi-specific consonants first, since a wrong substitution changes meaning without looking broken. Then names of people, places and channels. Then any Urdu or English words spoken inside Sindhi sentences, which should usually stay as they were said. Then line length, because Perso-Arabic Sindhi runs long in a vertical frame.
Can I publish Sindhi subtitles on YouTube?
Yes. YouTube accepts a subtitle track per language, so a Sindhi track can sit alongside others on the same video. Short-form feeds do not take a subtitle file, so those need the captions rendered into the picture instead.
What can I export?
Reviewed Sindhi captions export as SRT or VTT subtitle files, plain text, or a captioned video, depending on the destination. Keep the subtitle file even when you ship a captioned video, since it is the version you can still correct. Open the caption generator.
Start a Sindhi caption track
Transcribe the video, check the consonants and the names, then export SRT, VTT, text, or a captioned video.