- Extension
- .amr
- .mka
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Nokia
- Matroska
- Description
- An AMR file is an audio file saved in a compressed audio format developed by Ericsson. It is used by many 3G cell phones for voice recordings such as MMS messages. AMR files incorporate the Algebraic Code Excited Linear Prediction (ACELP) algorithm, which is designed to efficiently compress human speech audio.
- Audio container format that supports several types of audio compression algorithms; related to the .MKV video format, but only contains audio data.
- MIME Type
- audio/amr
- audio/x-matroska
