- Extension
- .amr
- .rmvb
- Format
- Binary
- Category
- Audio
- Video
- Developer
- Nokia
- RealNetworks
- 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.
- An RMVB file is a Real Media video file compressed using a variable bit rate, which is optimized for the content of the video. It is a newer variation of the standard Real Media (.RM) file format that allows for more efficient compression.
- MIME Type
- audio/amr
- application/vnd.rn-realmedia-vbr
