What is a .3GA file? How to open it
The Adaptive Multi-Rate (AMR, AMR-NB, or GSM-AMR) audio codec is represented by 3GA file containers (developed by the 3rd Generation Partnership Project). This codec is designed to compress speech using link adaptation at one of eight available bit rates. AMR was adopted by 3GPP in 1999, and GSM and UMTS currently use those files. Although…