Drop file here. 150 MB maximum file size.
An AMR is a compressed audio file developed by Ericsson. Optimized for audio storage, it is used by many 3G cell phones to store voice recordings, which include MMS messages.
An SPH file is an audio file created in the NIST SPHERE format, which is often used in searching speech recognition. Usually contains the apos; recording of apos; a person who speaks. The SPH files can be provided as voice-recognition system entries.
Access powerful and secure free online AMR tools to convert, view, edit, merge, split, and compare AMR files β all without installing any software. Our tools support the .AMR (Adaptive Multi-Rate Codec File) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your AMR files directly from your device with ease.
Chose or drag & drop your AMR file, click Convert to SPH, and download the SPH file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert AMR to SPH in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert AMR to 100s of file formats, without any limit, registration and downloading, 100% free and online AMR converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
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