3 ms·
>the vertical axis is literally labeled "Quality" And the labels on that axis make it perfectly clear what they mean by "quality". It's how much of the spectru
by deadbeeves 3y ago
>the vertical axis is literally labeled "Quality"
And the labels on that axis make it perfectly clear what they mean by "quality". It's how much of the spectrum they preserve at that bitrate. If "quality" referred to subjective quality there's no reason why the chart should stop at 128 kbps. It stops there because the fullband codecs don't brickwall the signal past that point. Instead they use psychoacoustics to compress it.
>Early Opus vs. MP3 tests were done with LAME, which is awful.
That's funny, because other commenters say LAME is currently the benchmark for MP3 encoders.
Here: https://wiki.hydrogenaud.io/index.php?title=Transparency https://wiki.hydrogenaud.io/index.php?title=Transparency it states that MP3 is considered artifact-free at 192 kbps, although here: https://www.head-fi.org/threads/when-is-mp3-transparent-an-abx-test-of-compressed-audio-versus-lossless.747533/ https://www.head-fi.org/threads/when-is-mp3-transparent-an-a... someone did an ABX test and they could still hear differences more than half the times at 256 kbps. If I take the lower number, MP3 is still 50% less efficient than Opus.