The IETF has standardized the Opus lossy audio codec as RFC 6716. While most audio codecs aim to solve specific problems—relatively high bit-rate music reproduction such as AAC and MP3, low latency ...
Now that the patents for the popular MP3 audio codec have expired, it’s unlikely that the format is going anywhere, despite many reports that misinterpreted what the end of the format’s licensing ...
In the iOS 12.2 beta, Apple has improved the quality of the audio messages sent in the Messages app after switching to a new Opus codec at 24000 Hz, up from the previously used AMR codec at 8000 Hz.