Sonix transcribes your GSM file and exports it as a professional PDF document that you can share with colleagues and clients.
Telephone-quality audio for voicemail and calls
GSM is a compressed audio stream that is primarily used by cell phones. GSM files are designed for telephone-quality audio use in Europe and stores audio mainly for telephone quality voice. It makes for a good balance between size of file and quality retention with data around 96KB per minute. GSM is primarily used for voicemail storage or to record phone conversations that will be played back later.
Telephone-grade audio; good for speech, not music
Sign up for Sonix's free trial. Includes 30 minutes free.
Upload your GSM file from your computer or cloud storage.
Choose from 53+ languages spoken in your file.
Sonix AI transcribes your GSM audio automatically.
Polish your transcript before exporting to PDF.
Download your GSM transcript as a professional PDF.
Yes! Sonix transcribes your GSM file and exports it as a professionally formatted PDF document.
The PDF includes the full transcript with speaker labels, timestamps (optional), and professional formatting for easy reading and sharing.
Yes! You can choose to include or exclude timestamps, speaker labels, and paragraph breaks. Customize the layout before export.
Sonix processes files 10x faster than real-time. After transcription, PDF export is instant.
Yes! Use our browser-based editor to make corrections and polish your transcript before downloading the PDF.
PDF transcripts are text-based and very compact. Even long recordings produce PDFs under 1MB.
Get clean, professionally formatted PDFs perfect for sharing and archiving.
Include or exclude timestamps based on your needs.
Automatically identify and label different speakers.
PDFs are universally readable and easy to share with anyone.
Surprisingly accurate transcription across a number of European accents (Yorkshire, Scottish, Oxford, Italian!)
Very high quality transcription - very accurate - only took a quick scan/sweep to manually correct/clean up the text.
I have a 30-40 minute commute to work and like to dictate memos and other brief documents along the way–but I haven't had an easy way to get them transcribed...until now. Thanks Sonix!
I was truly amazed by the quality of the transcript I received from you.
Way better than other transcription services I've tried. It will save me a lot of time. I'd recommend it to everyone I know.
Sonix is easy to use. Ridiculously easy. And even though the accuracy wasn't perfect it saved several days in a typical transcription cycle and the hourly cost we usually pay.
I am very impressed with your program. The recording was not crystal clear and yet I received a perfect transcription...Wow! I would recommend this to anyone.
Blown away by what it does! Accuracy, ease of use, affordability, simple straightforward interface with well thought out additional tools and functions. Superb!
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AI transcription and translation in 53+ languages.
