Head-Fi.org › Forums › Equipment Forums › Sound Science › BLIND TEST: Lossless vs. MP3 320
New Posts  All Forums:Forum Nav:

BLIND TEST: Lossless vs. MP3 320 - Page 2

Poll Results: BLIND TEST: Lossless vs. MP3 320 kbps

 
  • 27% (40)
    A is Lossless
  • 42% (63)
    B is Lossless
  • 30% (45)
    No Difference
148 Total Votes  
post #16 of 107

i used that ABX thingy and got it right 3/4 times, then it went ended up 6/9, lol i think i overplayed the same tunes...

post #17 of 107

Anyone else want to post some logs?

 

After this, I'd love to see some 24/96 vs. 16/44 samples.

post #18 of 107

The beginning was hard to tell apart. but i finally got it

 

Warning: Spoiler! (Click to show)

i realized...this song actually had vocals after 2 mintues...silly me. so i set both to start at :30 seconds...and teh difference was pretty easy to tell. In A, the vocals don't flow. immidatley at :30 to :31 with the "across the floor" you can tell there is some staticy and the vocals jsut can't reach as easy.  i didn't read any of this before i tried. i did this with Shure SRH 440's and not my HFI 580's...so thus i wouldn't have heard the better bass at the beginning of B.

 

post #19 of 107
Quote:
Originally Posted by bowei006 View Post

The beginning was hard to tell apart. but i finally got it

 

Warning: Spoiler! (Click to show)

i realized...this song actually had vocals after 2 mintues...silly me. so i set both to start at :30 seconds...and teh difference was pretty easy to tell. In A, the vocals don't flow. immidatley at :30 to :31 with the "across the floor" you can tell there is some staticy and the vocals jsut can't reach as easy.  i didn't read any of this before i tried. i did this with Shure SRH 440's and not my HFI 580's...so thus i wouldn't have heard the better bass at the beginning of B.

 

Nice and very informative, but you still have to post your abx log for it to count.wink_face.gif

 

Did a quick test, tried to focus on the space/separation right from the beginning.

 

My score was hidden during the test and I thought I had it pinned down, but my

Result shows (11.5%) that I failed and if I could hear a difference with the setup used for this test it may as well have been the luck of a draw. So I failed to hear a difference.

 

 

 

foo_abx 1.3.4 report
foobar2000 v1.1.11
2012/02/14 19:01:47
 
File A: C:\Users\Desktop\ABX Test\A.wav
File B: C:\Users\Desktop\ABX Test\B.wav
 
19:01:47 : Test started.
19:02:19 : 01/01  50.0%
19:02:29 : 01/02  75.0%
19:02:37 : 02/03  50.0%
19:02:47 : 02/04  68.8%
19:02:57 : 02/05  81.3%
19:03:04 : 03/06  65.6%
19:03:11 : 04/07  50.0%
19:03:18 : 05/08  36.3%
19:03:31 : 06/09  25.4%
19:03:40 : 07/10  17.2%
19:03:48 : 08/11  11.3%
19:03:58 : 09/12  7.3%
19:04:12 : 09/13  13.3%
19:04:19 : 10/14  9.0%
19:04:28 : 11/15  5.9%
19:04:36 : 12/16  3.8%
19:04:49 : 13/17  2.5%
19:04:58 : 14/18  1.5%
19:05:05 : 14/19  3.2%
19:05:30 : 14/20  5.8%
19:06:06 : 15/21  3.9%
19:06:29 : 15/22  6.7%
19:06:51 : 16/23  4.7%
19:07:22 : 16/24  7.6%
19:08:00 : 16/25  11.5%
19:08:06 : Test finished.
 
 ---------- 
Total: 16/25 (11.5%)
post #20 of 107

That was absolutely exhausting!  Any differences I thought I heard were extremely hard to detect, and made me focus on the tiniest of nuances in the music to the point that I didnt even know what song was actually playing.  In the end, my results were 14/20, which to me seems rather close to 50/50.  Not that I actually expected to hear a difference, and I'm actually surprised that I was even this successful. 

 

However, don't you DARE ask me which track was lossless - I have absolutely no clue!  :D

 

 

 

 

foo_abx 1.3.4 report
foobar2000 v1.1.1
2012/02/15 00:58:15

File A: C:\Users\Doug\Desktop\320vFLAC\A.wav
File B: C:\Users\Doug\Desktop\320vFLAC\B.wav

00:58:15 : Test started.
01:00:25 : 01/01  50.0%
01:01:29 : 02/02  25.0%
01:02:35 : 03/03  12.5%
01:03:43 : 04/04  6.3%
01:04:50 : 05/05  3.1%
01:05:55 : 05/06  10.9%
01:07:03 : 06/07  6.3%
01:08:08 : 07/08  3.5%
01:10:16 : 07/09  9.0%
01:11:22 : 08/10  5.5%
01:12:29 : 08/11  11.3%
01:14:09 : 09/12  7.3%
01:15:17 : 10/13  4.6%
01:16:21 : 11/14  2.9%
01:17:25 : 12/15  1.8%
01:19:31 : 12/16  3.8%
01:21:37 : 12/17  7.2%
01:22:43 : 13/18  4.8%
01:24:01 : 14/19  3.2%
01:25:08 : 14/20  5.8%
01:25:26 : Test finished.

 ----------
Total: 14/20 (5.8%)

post #21 of 107

I just did this with itunes.... I didnt use foobar.

post #22 of 107
Quote:
Originally Posted by bowei006 View Post

I just did this with itunes.... I didnt use foobar.


Use foobar - 20 tests - then post results. Don't worry - unless you're either trained, or have amazing hearing, you'll likely fail (like most of us).

 

post #23 of 107

I actually thought I had this one for a while - but lost it at the end ......

 

Who am I kidding wink.gif - results speak for themselves - I can't reliably tell the difference with the artifact gone.

 

 

foo_abx 1.3.4 report
foobar2000 v1.1.10
2012/02/16 00:40:05
 
File A: E:\A.wav
File B: E:\B.wav
 
00:40:05 : Test started.
00:41:45 : 01/01  50.0%
00:42:14 : 01/02  75.0%
00:42:30 : 01/03  87.5%
00:42:40 : 02/04  68.8%
00:42:53 : 03/05  50.0%
00:43:11 : 04/06  34.4%
00:43:31 : 05/07  22.7%
00:43:51 : 06/08  14.5%
00:44:13 : 07/09  9.0%
00:45:00 : 08/10  5.5%
00:45:47 : 09/11  3.3%
00:46:49 : 09/12  7.3%
00:47:12 : 09/13  13.3%
00:47:40 : 09/14  21.2%
00:48:12 : 10/15  15.1%
00:48:34 : 10/16  22.7%
00:49:51 : 10/17  31.5%
00:50:24 : 11/18  24.0%
00:50:36 : 11/19  32.4%
00:50:47 : 11/20  41.2%
00:51:25 : Test finished.
 
 ---------- 
Total: 11/20 (41.2%)
post #24 of 107
I also tried a few times and failed. Will have to retry with a better setup. But 320 kbps is supposed to be transparent for most samples so the odds are very low to reliably hear a difference even with a "good" headphone setup. wink.gif
post #25 of 107

Now that the files are fixed, this one was legitimately very difficult, I don't think I would have got it if the cymbals weren't hard panned to the left, making it easier to focus on.

 

Cant tell ya which one is lossless, neither sounds better to my ears, only different. But that's just how it is IMO if there aren't any massive pre-echo artifacts.

 

Warning: Spoiler! (Click to show)

foo_abx 1.3.4 report
foobar2000 v1.1.8
2012/02/16 00:45:11

File A: C:\Users\Alice\Desktop\A.wav
File B: C:\Users\Alice\Desktop\B.wav

00:45:11 : Test started.
00:45:30 : 00/01  100.0%
00:45:40 : 01/02  75.0%
00:45:48 : 01/03  87.5%
00:46:23 : 02/04  68.8%
00:46:35 : 03/05  50.0%
00:46:49 : 04/06  34.4%
00:47:02 : 05/07  22.7%
00:47:18 : 06/08  14.5%
00:47:41 : 07/09  9.0%
00:47:59 : 08/10  5.5%
00:48:13 : 09/11  3.3%
00:48:26 : 09/12  7.3%
00:48:35 : 10/13  4.6%
00:48:50 : 11/14  2.9%
00:49:06 : 12/15  1.8%
00:49:37 : 13/16  1.1%
00:49:53 : 14/17  0.6%
00:50:05 : 15/18  0.4%
00:50:16 : 16/19  0.2%
00:50:24 : 17/20  0.1%
00:50:43 : 18/21  0.1%
00:50:56 : 19/22  0.0%
00:51:11 : 19/23  0.1%
00:51:21 : 20/24  0.1%
00:51:32 : 21/25  0.0%
00:51:39 : Test finished.

 ----------
Total: 21/25 (0.0%)

 

I prefer heavily compressed tracks, the dynamic range on something well recorded makes my ears hurt.

post #26 of 107

THanks to brooko. Now what do these numbers even mean?

post #27 of 107
Quote:
Originally Posted by bowei006 View Post

THanks to brooko. Now what do these numbers even mean?

You mean those in the abx logs? Like this: 00:45:00 : 08/10 5.5%

It's the current time, number of correct choices (8), number of total trials (10) and chance that you're just guessing (5.5%) which should be below 5%.
Edited by xnor - 2/15/12 at 2:08pm
post #28 of 107
Quote:
Originally Posted by xnor View Post


You mean those in the abx logs? Like this: 00:45:00 : 08/10 5.5%
It's the current time, number of correct choices (8), number of total trials (10) and chance that you're just guessing (5.5%) which should be below 5%.


....ill get the plugin and foobar and read their stuff ro just do it and see those numbers for myself

post #29 of 107
You just need to check the plugin during the installation of fb2k, or simply choose full installation, then add A.wav and B.wav, select both files, right-click - Utilities - ABX two tracks. When you're done with the test and close the window you're prompted to save the abx log in a text file.
post #30 of 107
Quote:
Originally Posted by xnor View Post

You just need to check the plugin during the installation of fb2k, or simply choose full installation, then add A.wav and B.wav, select both files, right-click - Utilities - ABX two tracks. When you're done with the test and close the window you're prompted to save the abx log in a text file.


thank you. i will do self testing tmmrw :D

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Sound Science
Head-Fi.org › Forums › Equipment Forums › Sound Science › BLIND TEST: Lossless vs. MP3 320