Welcome to the File Converter
Upload your file to start converting. Choose a file from your device or use a remote file link.
Max file size 1GB. Convert for free
By proceeding, you agree to our Terms of Use.
How to Convert Spx to AMR?
- Click the “Choose SPX Files” button and select your SPX file
- Click on the “Convert” button to start the conversion
- When the status changes to “Done”, click the "Download AMR" button
Convert Any SPX to AMR
This tool supports converting many types of Spx to AMR. ConvertBest Spx Converter
Convert your Spx with perfect quality, size, and compression. Plus, you can also batch convert Spx using this tool.Free & Secure
Our Spx Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.What is an AMR file?
AMR (Adaptive Multi-Rate) is an audio format optimized for speech encoding, widely used in mobile phone recordings, VoIP calls, and narrowband audio transmission. AMR supports multi-format conversion via FFmpeg, providing efficient compression and good voice quality, suitable for mobile communications and voice recording.
- Developed by: 3rd Generation Partnership Project (3GPP)
- Initial Release: 1998
- Useful links: https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec https://www.3gpp.org/ https://ffmpeg.org/
Your Data, Our Priority
At AllConverter, we go beyond just converting files—we protect them. Our robust security framework ensures that your data is always safe, whether you're converting an image, video, or document. With advanced encryption, secure data centers, and vigilant monitoring, we've covered every aspect of your data's safety.