The AMR file type is primarily associated with ‘Adaptive Multi-Rate ACELP Codec’. Speech encoding format used in GSM telephony. The AMR ACELP coder will lower the compression rate as cellular interference increases, thus enabling more error correction to be applied. It also is used to harmonize the codec standards amongst different cellular systems. (ACELP = […] Learn more about amr
The WMA file format stands for ‘Windows Media Audio’. Microsoft developed this format to compete against the rapidly growing more popular mp3 format. WMA is intended primarily for streaming at low bandwidths. A big difference with other formats such as MP3 and OGG is the potential use of DRM. DRM is a controversial technique that […] Learn more about wma