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Topic: My tests of AAC/Vorbis/Opus at 128 Kbps VRB vs Flac. (Again).  (Read 9498 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.

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

Reply #6 –
Alright, after this many years I happened to run into this post and I decided to repeat the opus vs flac test to see if my hearing hasn't changed.

A lot has happened ever since then, for once I now longer use windows lol (had to install foobar with wine), I also don't have the same soundcard, I use to use a Xonar DG and now I use the apple usb-c to 3.5mm adapter. But I still use the same old superlux 668B.

And I was able to pull it off:



Code: [Select]
foo_abx 2.2.1 report
foobar2000 v2.1.5
2024-05-05 04:16:19

File A: 18. Anea Landing short.flac
SHA1: 0da3ad16de4d4ddc4f5f2e1b7d9a0c92f526b99e
File B: 18. Anea Landing short.opus
SHA1: fc74e5273b414c896b7f4b0544f354a91b474db6

Output:
Default : Primary Sound Driver
Crossfading: NO

04:16:19 : Test started.
04:19:53 : Test restarted.
04:19:53 : 01/01
04:21:20 : Test restarted.
04:21:20 : 02/02
04:22:33 : Test restarted.
04:22:33 : 02/03
04:22:58 : Test restarted.
04:22:58 : 03/04
04:23:34 : Test restarted.
04:23:34 : 04/05
04:33:41 : Test restarted.
04:33:41 : 05/06
04:34:00 : Test restarted.
04:34:00 : 06/07
04:37:31 : Test restarted.
04:37:31 : 07/08
04:38:16 : Test restarted.
04:38:16 : 08/09
04:39:47 : Test restarted.
04:39:47 : 09/10
04:39:47 : Test finished.

 ---------- 
Total: 9/10
p-value: 0.0107 (1.07%)

 -- signature -- 
7059705b283750875d25dabcf5f1c12930d66813
 

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

Reply #7 –
Quote from: Phoenix1 on
(had to install foobar with wine)

squishyball exists you know ;)

I had to look up the name because I haven't used it in years.

So, the patch from here is needed to compile it successfully with latest ncurses versions.

Also, Opus support (via opusfile) appears to be broken. WAV support still works.

Looks like a modernized version using Rust+ratatui would be useful. Maybe I'll do it myself if I ever have the time.