Sonix is an online speech-to-text converter. We extract the speech from your GSM file and give you an accurate text transcript in minutes.
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 of free transcription.
Upload your GSM file from your computer, Google Drive, or Dropbox.
Choose from 53+ languages spoken in your GSM file.
Sonix AI automatically extracts and transcribes your GSM audio.
Polish your transcript with our browser-based AudioText Editor.
Download your GSM transcript as a text file or other formats.
Yes! Sonix uses advanced AI to convert GSM 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 GSM files to text. Accuracy depends on audio quality and clarity of speech.
Sonix processes GSM files 10x faster than real-time. A 30-minute recording is transcribed in about 3 minutes.
Sonix supports 53+ languages for GSM 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 GSM transcript as plain text, Microsoft Word (DOCX), PDF, SRT subtitles, VTT captions, and more.
Convert GSM to text 10x faster than real-time with our advanced AI.
Industry-leading accuracy for GSM transcription, powered by AI.
Polish your GSM transcript with our intuitive AudioText Editor.
Convert GSM to text at a fraction of the cost of manual transcription.
The transcription was fast and accurate.
Sonix is AWESOME and extremely accurate. This software has it all. I wish that all of the software that I use on a daily basis had the complete and thoughtfully created functionality of Sonix!
You guys saved me hours of work, reduced my stress level the moment I started and saw the first result coming in.
I am LOVING Sonix! The price, accuracy, create your own library, check marks when something is completed. I am so glad I found the service.
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 loovvvve that the audio is transcribed so quickly.
Thank you for this amazing application and program which really saved my life.
The entire process is extremely straightforward and what I liked most was the accuracy of the transcriptions and translations. I must say, I had some doubts as to ...
Try Sonix free with 30 minutes minutes of transcription. No credit card required.
AI transcription and translation in 53+ languages.
