Accurately convert Thai AIF files to text
Sonix automatically transcribes your Thai AIF files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your Thai AIF files are long gone. Thai speech to text: Sonix has been independently reviewed the most accurate Thai automated transcription, translation, and subtitling platform.
Free to start — no credit card required.
Thousands of Sonix customers convert their Thai AIF files to text











Use Sonix to quickly convert
Thai AIF files to text
- 1Log into your Sonix account~30 sec
If you don't have one, you can sign up for Sonix's free account — Your free trial includes 30 minutes of transcription and translation.
- 2Upload your Thai AIF file~1 min
Click “Upload” and locate the Thai AIF file on your computer.
- 3Choose language: Thai~10 sec
Select Thai as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your AIF file~5 min
Sonix transcribes your Thai AIF file and converts it to Thai text.
- 5Polish your Thai transcript~2 min
Edit your Thai transcript directly in the browser to correct any misheard words.
- 6Export Thai text~10 sec
Export the Thai text to MS Word, PDF, subtitles, or plain text.
Understanding Thai AIF files
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.
AIF technical specifications
- Codec
- Linear PCM (uncompressed)
- Container
- AIFF (IFF-based chunk structure)
- Typical bitrate
- ~1,411 kbps (16-bit/44.1 kHz stereo)
- Sample rate
- 44.1–48 kHz common; high-resolution rates such as 96 and 192 kHz also supported
- Compression
- Uncompressed
Thai at a glance
- Speakers
- ~60 million speakers worldwide
- Writing system
- Thai script (written left to right, with no spaces between words)
- Say hello
- สวัสดี!
Frequently asked questions
How to improve the accuracy of your Thai transcripts?
Start by improving the quality of the Thai AIF file that you upload to Sonix. Please use high quality recording equipment, recording in a quiet environment, and ensure that your speakers are speaking clearly to ensure that your transcript is as accurate as possible.
Any advice for the Thai AIF file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Thai AIF file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from AIF, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Thai with Sonix:
What is the difference between AIF and AIFF files?
They are the same Audio Interchange File Format; .aif is simply the shortened three-character extension. Any application that opens AIFF files can open AIF files.
Why are my AIF files so large?
AIF stores uncompressed PCM audio, so a CD-quality stereo recording takes roughly 10 MB per minute. The upside is that no audio detail is lost to compression, which also makes the files well suited to transcription.
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.
Trusted by professionals worldwide
I’m stunned how much easier it makes life. I worked on documentary films and it cost us a fortune to have the interviews transcribed. The idea that this exists is mind-boggling to me.
It’s super easy to use and I was so impressed how fast the transcription came back. I love that you can listen to the recording while following along with the transcripts. I also like you can download the transcripts.
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