OpusをOGGに変換
Opus音声をOGG Vorbisに変換すれば、Vorbisは読めてもOpusには対応していない古いプレーヤーでも再生できます。
変換元
To
Opus
The most efficient audio codec available, built for the modern web. Excellent quality even at very low bitrates.
OGG
A free, open audio format using the Vorbis codec. Popular in games and open-source software.