Sonix transcribes your MTS file and creates closed captions that make your content accessible to everyone.
HD camcorder video format (AVCHD)
MTS files are also Advanced Video Codec High Definition (AVCHD) video files that contain high definition MPEG videos that have been captured by certain models of video camcorders. Originally designed by Sony and Panasonic for their High Definition camcorders, JVC, Sanyo, and Canon camcorders also now record audio and video in the MTS file format. Typically MTS videos have high definition streams and support both 720p and 1080i HD videos.
High-definition video and audio quality
Sign up for Sonix's free trial. Includes 30 minutes free.
Upload your MTS file from your computer or cloud storage.
Choose from 53+ languages spoken in your file.
Sonix AI transcribes your MTS with word-level timestamps.
Fine-tune timing and formatting for accessibility.
Download closed captions in SRT, VTT, or SCC format.
Yes! Sonix transcribes your MTS file with precise timestamps and creates closed captions in standard formats.
Closed captions include non-speech elements like [music], [applause], and speaker identification. They're designed for deaf and hard-of-hearing viewers.
Yes! Sonix captions meet accessibility requirements when properly reviewed and edited. Our editor helps ensure timing and accuracy standards.
Export captions as SRT, VTT, SCC (for broadcast), and other formats. Each format has specific use cases.
Yes! Use our editor to add [music], [laughter], and other non-speech descriptions for full accessibility.
Absolutely! Captions make your video content searchable and improve accessibility, both of which can boost SEO rankings.
Create captions that make your content accessible to deaf and hard-of-hearing viewers.
Meet accessibility requirements with properly formatted closed captions.
Add non-speech elements like [music] and [applause] for full context.
Captions make video content searchable and improve discoverability.
I wouldn't have been able to pass my course without this technology. I was able to get two A's thanks to this program!
Unbelievable! Wow, it's amazing. Really amazing. I didn't believe it so I wanna test something and I got actually result I wanted. Amazing!
I have been a dialogue system researcher for half a decade now. I had build my own app for doing the transcriptions. Sonix was clearly better than what I had. I made the switch!
I was surprised in the accuracy from the audio to script. Out of 3 transcripts, only one had to be adjusted. Perfect!!
Sonix is amazing. It’s like adding the most brilliant brain to my staff.
Thank you for this amazing application and program which really saved my life.
Researched and did trials of at least 12 other services. Chose Sonix because of accuracy and simplicity.
The experience is fantastic, the system is easy to use, and transcription quality in different languages is unbeatable. Sonix is the best system I've tried so far...and I know one ...
Try Sonix free with 30 minutes of transcription. No credit card required.
AI transcription and translation in 53+ languages.
