Online GSM Converter

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What is a GSM file?

GSM is a speech compression format based on the Global System for Mobile Communications. It was developed to optimize audio transmission over mobile networks, focusing on intelligibility rather than fidelity. GSM audio is often encoded at 13 kbps, using the Full Rate speech codec defined by the ETSI standard.

GSM is used in VoIP, voicemail systems, and older mobile networks. While it's not suitable for music, it remains relevant for speech-focused applications in low-bandwidth environments.

How to open GSM files

GSM files can be opened with Audacity (with FFmpeg), VLC Media Player, and SoX. They're often found in VoIP and legacy mobile applications.

Need to convert GSM to WAV or MP3? AnyConv handles GSM files online with ease.

Key facts about GSM

  • Full name: GSM Full Rate Audio
  • Extension: .gsm
  • MIME type: audio/gsm
  • Developed by: ETSI
  • Initial release: 1991

Useful links and resources

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❓ Frequently Asked Questions

Answers to common questions about GSM
  • Do I need to install software to convert GSM files?
    No extra software is required. Just upload your GSM files to AnyConv, we’ll convert them on our servers, and you can download the finished file right away.
  • Can I use GSM converter on my phone or tablet?
    Yes, you can convert GSM files on any device - including phones and tablets. AnyConv works perfectly on mobile.
  • Is it safe to convert GSM files with AnyConv?
    Yes, converting GSM files with AnyConv is secure. All files are automatically deleted after conversion and never shared.
  • Can I convert multiple GSM files at once?
    Yes, our converter supports batch processing. You can upload several GSM files and convert them all at once.