Only few softwares can play *.amr file format like Apple QuickTime Player, RealNetworks RealPlayer and AMR Player. So its better to convert *.amr to *.mp3 file format.
AMR to MP3 Converter is a freeware audio converter for AMR audio and MP3 audio, it can convert AMR audio to MP3 or convert MP3 audio to AMR. The cool feature with this software is that it supports batch audio conversion.
The Extension of AMR File is “.amr”, this is compressed audio format developed by Ericsson. It is used by many 3G cell phones for voice recordings such as MMS messages. AMR is especially associated with the Global System for Mobile Communications (GSM).
Adaptive Multi-Rate (AMR) is used in speech coding and involves audio data compression. Audio data compression allows for more storage on voice files. “.amr” is a popular filename extension for AMR. Many cell phones use AMR for speech recording storage. MP3 is a proprietary format, it is a common audio format for consumer audio storage.
Users can use this program as one ringtone maker, if you like some music, you can use this software to make your style mobile ringtone by yourself.