What is an OPUS File?
An OPUS file contains audio content that uses both SILK and CELT codecs to support variable bit rates ranging from 6 kb/s to 510 kb/s. It is stored in the Opus format, which is a lossy audio format designed primarily for online streaming of audio. The Opus codec is mainly used for Voice Over IP (VOIP), in-game chat, or video conferencing.
Download OPUS Sample Files
You can download .OPUS sample files from below to perform your tests.