Convert your file from Adaptive Multi-Rate Codec File to Opus Audio File with this AMR to OPUS converter.
Enter the timestamps where you want to trim your audio. Use the format HH:MM:SS. HH = hours, MM = minutes, SS = seconds.
Example: 00:02:23 for 2 minutes and 23 seconds.
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AMR is a compression format to optimize speech coding consisting of multi-rate narrowband speech codecs. AMR files can be recorded with mobile phones. To accomplish random access or synchronization of audio and video the 3GPP format can be utilized. ...
Developed with the intent to support internet streaming by the Internet Engineering Task Force (IETF) OPUS is a lossy audio format. The OPUS extension encoded with OPUS codec are uncommon as the OPUS codec is mainly brought in use for streaming.
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