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AMR (Adaptive Multirate)

Adaptive multirate, or multi-rate, is a telecoms term. It refers to compressing audio when speaking on a cell phone. This is called a codec. AMR speech codec uses various technologies to reduce error rates when transferring audio data via the phone network. For telecoms operators, particularly cell phone network operators, this can save money and resources. This is because fewer cell sites are required to handle large volumes of data.

What Small and Midsize Businesses Need to Know About AMR (Adaptive Multirate)

Small businesses that utilize cell phone records, such as investigative or law enforcement, may come across the AMR file type (.amr). The file extension indicates audio that has been recorded in AMR format.

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