Accurately convert
Japanese MTS files to text
Sonix automatically transcribes your Japanese MTS files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your Japanese MTS files are long gone. Japanese speech to text: Sonix has been independently reviewed the most accurate Japanese automated transcription, translation, and subtitling platform.
Free to start — no credit card required.
Thousands of Sonix customers convert their Japanese MTS files to text
Use Sonix to quickly convert
Japanese MTS 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 Japanese MTS file~1 min
Click “Upload” and locate the Japanese MTS file on your computer.
- 3Choose language: Japanese~10 sec
Select Japanese as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your MTS file~5 min
Sonix transcribes your Japanese MTS file and converts it to Japanese text.
- 5Polish your Japanese transcript~2 min
Edit your Japanese transcript directly in the browser to correct any misheard words.
- 6Export Japanese text~10 sec
Export the Japanese text to MS Word, PDF, subtitles, or plain text.
Understanding Japanese MTS files
Standard Japanese (hyojungo), based on Tokyo speech, dominates broadcasting and education and is the variety speech recognition models are primarily trained on. Kansai dialect (Osaka and Kyoto) is the most prominent regional variant, with different pitch accent and vocabulary, while Tohoku and Kyushu dialects diverge further from the standard; the traditional Ryukyuan languages of Okinawa differ so much that linguists classify them as separate languages rather than Japanese dialects.
MTS technical specifications
- Codec
- H.264/AVC video with Dolby Digital (AC-3) or linear PCM audio
- Container
- MPEG-2 Transport Stream (AVCHD)
- Typical bitrate
- 5–24 Mbps video (up to 28 Mbps in AVCHD 2.0)
- Sample rate
- 48 kHz (audio track)
- Compression
- Lossy
Japanese at a glance
- Speakers
- ~125 million speakers worldwide
- Writing system
- Mixed script: kanji (Chinese characters) combined with the hiragana and katakana syllabaries, written without spaces between words
- Say hello
- こんにちは (Kon'nichiwa)!
Frequently asked questions
How to improve the accuracy of your Japanese transcripts?
Start by improving the quality of the Japanese MTS 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 Japanese MTS file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Japanese MTS file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from MTS, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Japanese with Sonix:
Why won't my MTS file play on my computer?
MTS files use the AVCHD transport-stream structure, which some default media players do not support, and clips copied out of the camcorder's AVCHD folder can lose playback context. Opening the file in VLC or remuxing it to MP4 usually resolves the issue.
Do I need to convert MTS to MP4 before transcribing?
No. You can upload the MTS file directly, and its audio track is extracted and transcribed the same way as an MP4 upload.
Can Sonix transcribe Japanese audio and video to text?
Yes. Upload your audio or video file, select Japanese as the spoken language, and Sonix returns a transcript in standard Japanese script (kanji, hiragana, and katakana) that you can edit in the browser and export.
Does Japanese transcription handle Kansai dialect and regional accents?
Sonix's Japanese model is built around standard (Tokyo) Japanese and generally handles regional accents, but strongly dialectal vocabulary such as Kansai-ben expressions may need corrections in the built-in editor.
Can Sonix create Japanese subtitles?
Yes. After transcribing, you can split the Japanese transcript into subtitle lines and export SRT or VTT files for video captioning.
Trusted by professionals worldwide
Very high quality transcription - very accurate - only took a quick scan/sweep to manually correct/clean up the text.
I really like it. Easy to use, very accurate, and easy to correct when it is not. A truly super program, and I would recommend it to anyone.
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