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Topic: My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).  (Read 9209 times) previous topic - next topic
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My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).

Well, some may have seem this already. I decided to redo it again (I forgot to make the tracks shorter than 30s and I couldn't edit the post anymore. xd).

Anyway, here are the results:

AAC (Qaac 2.49):
Spoiler (click to show/hide)

Opus (libopus 1.1):
Spoiler (click to show/hide)

Vorbis (Oggenc 2.88 w/libVorbis 1.3.5) This time I actually managed to get 9/10, honestly, there was luck here xd:
Spoiler (click to show/hide)

The trick is that at the very beginning there's a big cymbal that's intermediately followed by a hi-hat, at that moment, while the hi-hat is partially masked by the cymbal, AAC highs sound muffled, Opus sounds a bit better, and with Vorbis the difference is so miserable that I still can't believe that I managed to get 9/10 (Before my best results was 7/10).

Re: My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).

Reply #1 –
I've tried with Opus 1.1.3 and Vorbis 2.88 w/aoTuVb6.03

Opus:
Spoiler (click to show/hide)

Vorbis:
Spoiler (click to show/hide)

Seems aouTuV is better, but I really think it is because aoTuV ends up with an overall higher bitrate than libVorbis 1.3.5, both at q4.

Re: My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).

Reply #2 –
Can you hear the difference at 160 kbps with Opus?

Re: My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).

Reply #4 –
Quote from: Leo 69 on
Can you hear the difference at 160 kbps with Opus?

I honestly wasn't expecting this:

Spoiler (click to show/hide)

I don't know what to say xd This one is as hard as Vorbis at Q4. By the way I want to try with FDK AAC, but I can't get the .exe, I get an error "Couldn't reserve space for cygwin's heap".

I also tried Vorbis aoTuV at 150 Kbps and I failed (7 out of 10).

Quote from: greynol on
Are you confident your results aren't affected by the fact that Opus resamples to 48k?

I use "Resampler (dBpoweramp/SSRC)" at 48000 Hz (And also have set Windows's and Xonar's panels to that sample rate).

Re: My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).

Reply #5 –
Bump.

I've tried Opus 1.2 Alpha, but first I had to make sure that I was still able to ABX my previous Opus file so first here it is again:

Spoiler (click to show/hide)

Now Opus 1.2:

Spoiler (click to show/hide)

Notice that I accidentally named it beta instead of alpha.