Turn English video or audio into Thai subtitles, exported as SRT, VTT or plain text with the original timings intact. The file comes out in the Thai script rather than the the Latin alphabet of the audio.
From the Latin alphabet to the Thai script
English is written in the Latin alphabet and Thai in the Thai script, so the exported file uses a different writing system from the audio that produced it. The subtitle formats handle that — SRT and VTT are plain text and carry any script — but the font in whatever plays the file has to cover it.
This is the most common reason a Thai subtitle track looks correct in an editor and shows boxes or blanks on a device. Test on the target platform before you publish a batch.
How English audio becomes Thai subtitles
Audio in English (English) is transcribed first, then translated into Thai (ไทย). Because the translation runs on the transcript rather than on the audio, the Thai subtitle file keeps the timings of the original English speech — each line appears at the moment it was actually said.
Register in Thai subtitles
Thai marks politeness grammatically, so a translator has to choose a level of formality that the English original may not have stated. The same sentence can be rendered casually or deferentially and both are accurate translations of the words.
Check the register before publishing anything with a clear audience — an interview, a lecture, a customer-facing video. It reads as a mistake to a native speaker far more readily than an awkward word choice does.
Why translate English video into Thai
English is spoken principally in worldwide; Thai in Thailand. A Thai subtitle track is what lets one recording reach both audiences without re-recording, re-editing or dubbing it.
Because subtitles are a separate file rather than part of the picture, you can attach several language tracks to the same video and let viewers pick.
About the English audio
English has a wider spread of accents than any other language here, and the gap between spelling and pronunciation means recognition leans on context rather than sound alone. Names and technical terms are where errors concentrate, because those are exactly the words context cannot predict.
About the Thai subtitles
Thai is written without spaces between words and is tonal, so segmentation happens during recognition rather than afterwards. The script has no capital letters and no full stops, which makes sentence boundaries in the transcript a judgement call worth reviewing.
What an English to Thai subtitle file looks like
Four lines of English speech, transcribed and translated, as they come out of the exported SRT. The timings are the English speaker's — translation does not move them, which is why the file drops onto the original video unchanged.
Almost always, but it depends on the font rather than the file — SRT and VTT are plain text and carry the Thai script without difficulty. If you see empty boxes, the player is missing a font for the script, not reading the subtitles wrongly.
Can I control how formal the Thai is?
Not as a setting, but the subtitles are editable before you export them, which is where register gets adjusted in practice. It is worth a pass on anything with a defined audience, since Thai marks formality grammatically and the choice is visible in every line.
How do I add Thai subtitles to a English video?
Upload the video, set the spoken language to English and the subtitle language to Thai, then export the result as SRT and upload it alongside your video. Nothing is burned into the picture, so the subtitles stay switchable.
Does the Thai subtitle file stay in sync?
Yes. Translation happens on the transcript, so every Thai line inherits the timing of the English words it came from. The file will sync with the same video without adjustment.
