Please rate my foobar double abx blind test? |
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Please rate my foobar double abx blind test? |
 Jul 27 2012, 08:22
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#1
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Group: Members Posts: 3 Joined: 27-July 12 Member No.: 101805  |
foo_abx 1.3.4 report
foobar2000 v1.1.11 2012/07/27 00:58:16 File A: C:\Documents and Settings\RueK\Mis documentos\Mi música\D#4\TRACK (451).flac File B: C:\Documents and Settings\RueK\Mis documentos\TRACK (451).mp3 00:58:16 : Test started. 00:59:17 : 01/01 50.0% 00:59:58 : 01/02 75.0% 01:01:00 : 01/03 87.5% 01:01:36 : 01/04 93.8% 01:04:11 : 02/05 81.3% 01:05:02 : 03/06 65.6% 01:06:11 : 04/07 50.0% 01:06:49 : 05/08 36.3% 01:07:19 : 06/09 25.4% 01:07:48 : 06/10 37.7% 01:08:15 : 06/11 50.0% 01:09:02 : 07/12 38.7% 01:09:26 : 07/13 50.0% 01:09:37 : 08/14 39.5% 01:09:58 : 08/15 50.0% 01:10:53 : 09/16 40.2% 01:11:16 : 10/17 31.5% 01:11:33 : 11/18 24.0% 01:11:59 : 12/19 18.0% 01:12:33 : 13/20 13.2% 01:13:00 : 14/21 9.5% 01:13:18 : 15/22 6.7% 01:13:38 : 16/23 4.7% 01:13:57 : 16/24 7.6% 01:14:31 : 17/25 5.4% 01:15:34 : 18/26 3.8% 01:16:09 : 18/27 6.1% 01:16:24 : 18/28 9.2% 01:16:54 : 19/29 6.8% 01:18:13 : 20/30 4.9% 01:18:44 : 20/31 7.5% 01:19:04 : 20/32 10.8% 01:19:55 : 21/33 8.1% 01:20:07 : 22/34 6.1% 01:20:59 : 22/35 8.8% 01:26:27 : 22/36 12.1% 01:26:54 : 22/37 16.2% 01:27:08 : 23/38 12.8% 01:33:56 : 24/39 10.0% 01:34:14 : 24/40 13.4% 01:35:01 : 24/41 17.4% 01:35:06 : Trial reset. <--- after this i was just playing as i gave up so dont take the rest seriously. 01:35:34 : 00/01 100.0% 01:35:41 : Trial reset. 01:36:07 : 00/01 100.0% 01:36:33 : 00/02 100.0% 01:36:50 : 00/03 100.0% 01:36:55 : Trial reset. 01:36:56 : Trial reset. 01:36:56 : Trial reset. 01:37:21 : 01/01 50.0% 01:37:26 : Trial reset. 01:37:32 : 00/01 100.0% 01:37:33 : Trial reset. 01:37:35 : 01/01 50.0% 01:37:37 : Trial reset. 01:37:37 : Trial reset. 01:37:39 : 00/01 100.0% 01:37:40 : Trial reset. 01:37:41 : 00/01 100.0% 01:37:42 : Trial reset. 01:37:43 : 00/01 100.0% 01:37:44 : Trial reset. 01:37:45 : 01/01 50.0% 01:37:46 : Trial reset. 01:37:47 : 00/01 100.0% 01:37:48 : Trial reset. 01:37:50 : Trial reset. 01:37:52 : Trial reset. 01:37:55 : Trial reset. 01:37:56 : 00/01 100.0% 01:38:01 : Test finished. ---------- Total: 27/54 (55.4%) it was pretty hard, i was using my 30$ 2.1 speakers, it was a normal pop song, well encoded 320 kbps using the maximum possible settings cbr and the lossless file (which had a 22.1 khz cutoff) So i know the total result i messed up thanks to me playing with the abx extension of foobar i didnt know the results could be saved after pressing the exit button but what do you think of my hearing? this was my first test of this kind. |
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Jul 27 2012, 09:08
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#2
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 Group: Members Posts: 1051 Joined: 16-February 08 From: NL Member No.: 51347 |
You've demonstrated that you probably can't hear any differences between that FLAC and its mp3.
For fun, try a really low quality mp3, and see what happens. |
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Jul 27 2012, 09:23
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#3
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Group: Members Posts: 3 Joined: 27-July 12 Member No.: 101805 |
QUOTE (dhromed @ Jul 27 2012, 10:08)  You've demonstrated that you probably can't hear any differences between that FLAC and its mp3. For fun, try a really low quality mp3, and see what happens. really low quality like? 32 kbps? 128? i will try then thanks for your feedback. |
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Jul 27 2012, 10:52
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#4
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Group: Members Posts: 1051 Joined: 16-February 08 From: NL Member No.: 51347 |
Something like VBR v9, yes. Just to know what extreme compression sounds like — it might even sound better than you first thought, and it will prevent you from hearing artifacts in high quality mp3s where none exist, since you become familiar with how actual artifacts sound, instead of imagined ones.
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Jul 27 2012, 11:20
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#5
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Group: Super Moderator Posts: 4355 Joined: 23-June 06 Member No.: 32180 |
Well, you did reach <5% at 18/26, but there was a lot of oscillation between correct and incorrect guesses before that, so that p-value alone may not be very indicative of much of a genuine effect; someone better versed in the relevant statistics can elaborate on this.
But yes, everything after that is rubbish! So why bother including it? 
This post has been edited by db1989: Jul 27 2012, 11:43 |
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Jul 27 2012, 12:00
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#6
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Group: Members Posts: 1051 Joined: 16-February 08 From: NL Member No.: 51347 |
QUOTE (db1989 @ Jul 27 2012, 12:20) But yes, everything after that is rubbish! So why bother including it? Because a set of 100%'s looks to the uninitiated like a list of straight As. Obviously super-good, right? |
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Lo-Fi Version | Time is now: 25th May 2013 - 09:10 |
