Auto-caption Thai videos

Automatically add accurate captions to your Thai videos in less than 5 minutes. Sonix extracts speech, generates perfectly-timed captions, and exports to SRT or VTT format.

Free to start — no credit card required.See pricing

5-minute processing
SRT & VTT export
YouTube compatible
Thai transcription guide

Auto-caption Thai videos in 6 easy steps

  1. 1
    Sign in to Sonix~30 sec

    Log in or start a free trial with 30 minutes of auto-captioning for Thai videos.

  2. 2
    Upload your video~1 min

    Click 'Upload' and choose the Thai video file you want auto-captioned.

    50+ formats supported
  3. 3
    Select language~5 min

    Select Thai as the language spoken, then click 'Transcribe' to extract all speech from your video.

    Word-level timestamps
  4. 4
    Split into captions~1 min

    Open the Subtitles menu and select 'Split subtitles' to break your transcript into timed caption segments.

  5. 5
    Polish your captions~2 min

    Correct proper nouns and technical terms, then fine-tune the timing of your Thai captions.

  6. 6
    Export captions~10 sec

    Click 'Export' and choose SRT or VTT for your Thai captions, ready for any video platform.

    30+ export formats
The Thai language

Understanding Thai transcription

Who transcribes Thai content?

Thai broadcasters, video production teams, and subtitlers transcribe interviews, news segments, and dramas for captioning and localization. Market researchers, tourism and hospitality companies, and academics doing fieldwork in Thailand also rely on Thai transcripts for analysis and documentation.

Thai dialects and accents

Standard Thai, based on the Central Thai spoken in and around Bangkok, dominates broadcasting, education, and most recorded media, and it is the variety speech recognition models target. Regional varieties — Northern Thai (Kham Mueang), Northeastern Thai (Isan, closely related to Lao), and Southern Thai — differ noticeably in tones and vocabulary, so heavily dialectal recordings typically need more editing.

Where Thai is spoken

Thai is spoken in Thailand and parts of China, Myanmar, and Vietnam.

5min
Caption generation
1-hour Thai video captioned in ~5 minutes
99%
Caption accuracy
Industry-leading Thai speech recognition
40+
Video formats supported
MP4, MOV, AVI, MKV, WebM, and more
SRT/VTT
Caption export formats
YouTube, Vimeo, Facebook compatible
Thai transcription FAQ

Frequently asked questions about
Thai auto-captioning

How long does it take to auto-caption Thai videos?

Sonix uses cutting-edge transcription algorithms to caption your Thai videos in minutes. Our servers can auto-caption a one-hour Thai video in under 5 minutes. You can then edit and fine-tune using our powerful subtitle editor.

What caption file formats does Sonix export?

Sonix exports Thai captions in two industry-standard formats: SubRip (.srt) and WebVTT (.vtt). Both formats are compatible with YouTube, Vimeo, Facebook, and virtually all video platforms and players.

Can I burn captions directly into my Thai video?

Yes! From the Subtitles menu, you can choose to burn-in the Thai captions directly into your video. This creates a new video file with permanent, embedded captions that display on any device.

How accurate are Thai auto-captions?

Sonix delivers 85-99% accuracy for Thai auto-captioning, depending on audio quality. Clear audio with minimal background noise achieves the best results. Our AI models are trained specifically for Thai speech patterns.

Can I customize caption styling?

Yes. Sonix lets you customize font size, font color, background color, and caption positioning. These styling options are preserved when you burn captions into your video.

Do auto-captions work with YouTube?

Absolutely. Export your Thai captions as an SRT or VTT file and upload directly to YouTube. Your captions will sync perfectly with your video's audio.

Can Sonix transcribe Thai audio and video files?

Yes. Upload your Thai audio or video file, and Sonix converts it to text that you can proofread in the in-browser editor and export to formats such as Word documents or subtitle files.

Does Thai transcription handle Isan or other regional dialects?

Thai speech recognition is built around Standard (Central) Thai. Recordings with strong Isan, Northern, or Southern dialect speech can still be transcribed, but plan for additional proofreading time in the editor.

Can I create Thai subtitles from my transcript?

Yes. After transcribing and polishing your Thai transcript, you can export it as SRT or VTT subtitle files for video captioning.

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