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Please rate my foobar double abx blind test?

post #1 of 2
Thread Starter 

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.

post #2 of 2

My suggestion is to hide the results and do a fixed number of trials, for example 15. At least 12 have to be right.

 

From the log above I'd say you couldn't tell a difference. Doing more tests might improve your results, but don't worry if you cannot ABX a 320 kbit/s mp3. Try lower bitrates first, then work you way up.

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