The AMR file was created by Ericsson for use with a range of 3G cellular phones.
This compressed file format is used by cellular devices to store voice records such as the ones sent via MMS messages. It uses the Algebraic Code Excited Linear Prediction algorithm, which was created to compress human speech.
.amr File Extension
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什么是 amr 档案以及打开它的方法 - Adaptive Multi-rate Compressed Audio File
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amr file - Software that can open amr files
如果想要打开、编辑、创建、转换、播放、使用或观看amr f档案,请从以下列表中选出一个软件。该软件是以人们程度及与amr 档案种类的关联性加以排列。