What is the difference between .amr and .spx?
- Extension
- .amr
- .spx
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Nokia
- Xiph.Org
- 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 file compressed using Speex compression and saved in the Ogg Vorbis container format; designed as an audio compression format specifically for speech; compresses voice at 2 to 44 kbps and supports 8 kHz, 16 kHz, and 32 kHz compression in the same bitstream.
- MIME Type
- audio/amr
- audio/ogg
- Sample
- sample.amr
- Wikipedia
- .amr on Wikipedia
- .spx on Wikipedia