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by anexprogrammer 3622 days ago
I thought the main selling point of Opus was always low latency, so better for real time and things such as Teamspeak?

I long ago stopped caring about lossy formats for music as everything is FLAC on the NAS. For audiobooks and similar squeezing another couple of percent compression just isn't worth the effort nowadays, so they can stay in whatever format they came in, preferably MP3. When you've a few TB of space it mostly doesn't matter any more.

2 comments

> The format has three different modes: speech, hybrid, and CELT. The basic speech mode is pure SILK, up to 8 kHz, while the hybrid speech mode combines SILK for the speech and uses CELT for the frequency range above 8 kHz, allowing an easy fallback to pure SILK at very low bitrates.

> Opus combines the speech-oriented linear predictive coding SILK algorithm, and the lower-latency, MDCT-based CELT algorithm, switching between or combining them as needed for maximum efficiency.

https://en.wikipedia.org/wiki/Opus_(audio_format)#Features

The main selling point of Opus is low latency. They just accidentally ended up with something than offered better compression and quality than the established high latency codecs as well.