Accurately convert
English GSM files to text
Sonix automatically transcribes your English GSM files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your English GSM files are long gone. English speech to text: Sonix has been independently reviewed the most accurate English automated transcription, translation, and subtitling platform.
Free to start — no credit card required.
Thousands of Sonix customers convert their English GSM files to text
Use Sonix to quickly convert
English GSM files to text
- 1Log into your Sonix account~30 sec
If you don't have one, you can sign up for Sonix's free account — Your free trial includes 30 minutes of transcription and translation.
- 2Upload your English GSM file~1 min
Click “Upload” and locate the English GSM file on your computer.
- 3Choose language: English~10 sec
Select English as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your GSM file~5 min
Sonix transcribes your English GSM file and converts it to English text.
- 5Polish your English transcript~2 min
Edit your English transcript directly in the browser to correct any misheard words.
- 6Export English text~10 sec
Export the English text to MS Word, PDF, subtitles, or plain text.
Understanding English GSM files
English spans many regional varieties, including American, British, Australian, Irish, Canadian, Caribbean, Indian, and Nigerian English, each with distinct pronunciation, vocabulary, and rhythm. Non-rhotic accents (many British and Australian varieties drop the "r" after vowels, as in "car" or "letter") and vowel shifts across regions are the variations most likely to affect speech recognition.
GSM technical specifications
- Codec
- GSM 06.10 Full Rate (RPE-LTP)
- Typical bitrate
- 13 kbps (fixed)
- Sample rate
- 8 kHz
- Compression
- Lossy
English at a glance
- Speakers
- ~1.5 billion speakers worldwide, including roughly 380 million native speakers
- Writing system
- Latin alphabet
- Say hello
- Hello!
Frequently asked questions
How to improve the accuracy of your English transcripts?
Start by improving the quality of the English GSM file that you upload to Sonix. Please use high quality recording equipment, recording in a quiet environment, and ensure that your speakers are speaking clearly to ensure that your transcript is as accurate as possible.
Any advice for the English GSM file that I upload?
Yes, please do not over-compress or over-filter the audio track of your English GSM file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from GSM, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in English with Sonix:
Why won't my GSM file play on my computer?
GSM is a telephony codec that many consumer media players do not decode by default. Players such as VLC can open it, or you can convert the file to WAV or MP3 for broader compatibility.
Is telephone-quality GSM audio suitable for transcription?
GSM was designed specifically for human speech at an 8 kHz sample rate, so clear voice recordings generally transcribe well. As with any phone recording, heavy background noise or overlapping speakers reduces clarity.
Can Sonix transcribe British and Australian English as well as American English?
Yes. Sonix transcribes English recordings from any region, including British, Australian, Irish, Canadian, and Caribbean accents. Upload your file, review the transcript in the in-browser editor, and export it in your preferred format.
Does English transcription handle recordings with multiple accents?
Yes. A single English recording can include speakers with different regional accents, and Sonix transcribes them in one pass. Speaker labels help you attribute lines to each participant while you edit.
Can Sonix transcribe English audio with heavy background noise?
Sonix can transcribe noisy English audio, but cleaner recordings produce better results. Recordings with background noise, low volume, or crosstalk typically need more correction in the editor.
Trusted by professionals worldwide
The process was super easy. I liked that you can upload video file without stripping away the audio first to do it, this of course saves production time. Great job overall for sure!!!
Easy to use and surprisingly accurate.
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