Sonix is an online speech-to-text converter. We extract the speech from your OPUS file and give you an accurate text transcript in minutes.
Modern audio codec optimized for voice and streaming
The OPUS file is an audio file format that was created for use in Voice over IP (VoIP), video conferencing, or in-game chat. Since the OPUS codec is primarily used in Internet streaming applications, it isn't common. However, is it a lossy audio format that uses both SILK (used by Skype) and CELT (from Xiph.Org) codecs and supports variable bit rates from 6 kb/s to 510 kb/s.
State-of-the-art codec for voice; excellent at low bitrates
Sign up for Sonix's free trial. Includes 30 minutes of free transcription.
Upload your OPUS file from your computer, Google Drive, or Dropbox.
Choose from 54+ languages spoken in your OPUS file.
Sonix AI automatically extracts and transcribes your OPUS audio.
Polish your transcript with our browser-based AudioText Editor.
Download your OPUS transcript as a text file or other formats.
Yes! Sonix uses advanced AI to convert OPUS files to text with high accuracy. Simply upload your file, select the language, and get your transcript in minutes.
Sonix achieves up to 99% accuracy when converting OPUS files to text. Accuracy depends on audio quality and clarity of speech.
Sonix processes OPUS files 10x faster than real-time. A 30-minute recording is transcribed in about 3 minutes.
Sonix supports 53+ languages for OPUS transcription including English, Spanish, French, German, Chinese, Japanese, and many more.
Yes! Our browser-based editor lets you make corrections, add speaker labels, and polish your transcript while playing back the audio.
Export your OPUS transcript as plain text, Microsoft Word (DOCX), PDF, SRT subtitles, VTT captions, and more.
Convert OPUS to text 10x faster than real-time with our advanced AI.
Industry-leading accuracy for OPUS transcription, powered by AI.
Polish your OPUS transcript with our intuitive AudioText Editor.
Convert OPUS to text at a fraction of the cost of manual transcription.
Your product is amazing, I love so many features including the video capture on the side, ability to change the transcript as you go, highlighting, downloading audio files... SEARCHING TRANSCRIPTS
Sonix saves me 60% of the time editing. No more manual trascription nightmare with writing down timecodes, and sending emails. I think you are changing the game here! Bravo :)
I tried 3 other tools online and I can say that sonix blows them out of the water. I was very impressed with the ease of use, the % of words correctly translated and how simple it ...
I found out out you guys because I had to do some transcribing for me yearbook class and my friend recommended you guys. It was a very easy process and it took hours off the time I had to a...
Your app is amazing. Seriously, I'm blown away by the technology. The speed, accuracy, and the fact that you can play the audio and that it highlights the transcript in sync.
It's SO fast! I couldn't believe it. It's saved me hours of time.
Amazed by the software even in quite mixed audio!
I am impressed by the almost perfect accuracy of the conversion and the speed by which the transcription was completed. Your web display is also impressive with clear and easy-to-u...
Try Sonix free with 30 minutes of transcription. No credit card required.
AI transcription and translation in 54+ languages.
