opusenc
Convert WAV or FLAC audio to Opus.
TLDR
Convert WAV to Opus using default options
$ opusenc [path/to/input.wav] [path/to/output.opus]
Convert stereo audio at the highest quality level
$ opusenc --bitrate [512] [path/to/input.wav] [path/to/output.opus]
Convert 5.1 surround sound audio at the highest quality level
$ opusenc --bitrate [1536] [path/to/input.flac] [path/to/output.opus]
Convert speech audio at the lowest quality level
$ opusenc [path/to/input.wav] --downmix-mono --bitrate [6] [path/to/out.opus]