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.
I am very happy with the quality of the transcriptions! Having tried numerous other services, none can compare based on the quality for the value.
I loved that Sonix supports so many languages. I've been working on a project that involves speakers of 6 different languages and it allows me to translate everything into English natively, saving me so much time!
Time is money, and that is exactly what Sonix is saving. Time! So it's worth every penny!!
Of all the programs that do this, I found you the best!
I loved how accurate you are even in Dutch!
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!
Fantastic product and service. Fast, great quality transcript, great online editing facility. Whole experience was easy and problem free.
I love how quick, affordable and accurate it is, but what I like MOST is that the words are highlighted as the recording speaks them!
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AI transcription and translation in 53+ languages.
