Hello guys and girls, I've been lurking this forum for so long and have gathered such good info from all of you so thnks. Well, today I did some abx tests with apple aac because I was trying to find a good spot for my mobile device and I ended up with a question: if I dont feel confidence, but still manage to get high scores in multiple tests, can it still be considered that I lowkey can discern the difference? I personally feel like I do but I would like to know about the experts in here to clarify this for me if possible.
I did 128, 160, 192 (not included in here) and 256 all of them in cvbr.
128cvbr
foo_abx 2.0.6d report
foobar2000 v1.6.4
2021-04-27 16:43:48
File A: 06. Kesha - Crazy Beautiful Life.flac
SHA1: 2c6ce887d7f711664300938b9dc0775933b57ebb
File B: Crazy Beautiful Life.m4a
SHA1: b2f936ad9951f768df297a8dd8bb46a6d7fe45fd
Output:
Default : Primary Sound Driver
Crossfading: NO
16:43:48 : Test started.
16:44:21 : 01/01
16:44:27 : 02/02
16:44:37 : 03/03
16:44:42 : 04/04
16:44:58 : 05/05
16:46:21 : 06/06
16:46:30 : 07/07
16:46:39 : 08/08
16:46:39 : Test finished.
----------
Total: 8/8
p-value: 0.0039 (0.39%)
-- signature --
8b4185f69766454685cc7bd0a5acaccdca7cf850
160cvbr
foo_abx 2.0.6d report
foobar2000 v1.6.4
2021-04-27 15:58:12
File A: 06. Kesha - Crazy Beautiful Life.flac
SHA1: 2c6ce887d7f711664300938b9dc0775933b57ebb
File B: 1-06 Crazy Beautiful Life 1.m4a
SHA1: 47689fd59ac1424cb228d8eb45331b9234cd71b5
Output:
Default : Primary Sound Driver
Crossfading: NO
15:58:12 : Test started.
15:58:56 : 01/01
16:00:24 : 02/02
16:00:43 : 03/03
16:02:16 : 04/04
16:02:34 : 05/05
16:04:03 : 06/06
16:04:40 : 07/07
16:05:00 : 08/08
16:05:00 : Test finished.
----------
Total: 8/8
p-value: 0.0039 (0.39%)
-- signature --
db8992b1c44881cf0f117535c33f31a8e0af4ac7
Ok this one was a surprise for me, I did one try and got a high score and right after I did another one to understand if I was really hearing something different and it turns out I scored the same lol
256cvbr 1st try (I had to concentrate here bc its hard and I lost confidence one or 2 times like I was clueless but most of the time I heard a difference)
foo_abx 2.0.6d report
foobar2000 v1.6.4
2021-04-27 16:29:01
File A: 06. Kesha - Crazy Beautiful Life.flac
SHA1: 2c6ce887d7f711664300938b9dc0775933b57ebb
File B: 1-06 Crazy Beautiful Life 3.m4a
SHA1: 83fcd95369c7cc86be6a064e50694d263d7a858d
Output:
Default : Primary Sound Driver
Crossfading: NO
16:29:01 : Test started.
16:29:30 : 01/01
16:29:48 : 02/02
16:30:21 : 02/03
16:30:57 : 03/04
16:31:11 : 04/05
16:32:12 : 05/06
16:32:26 : 06/07
16:32:45 : 07/08
16:32:45 : Test finished.
----------
Total: 7/8
p-value: 0.0352 (3.52%)
-- signature --
2409995bacc3265dafccd6c0e5dc80aee281598d
256cvbr 2nd try (since I got shocked with the results on the 1st one I redid and got the same score again with concentration and lots of repetition even though I did this one quite fast)
foo_abx 2.0.6d report
foobar2000 v1.6.4
2021-04-27 16:35:05
File A: 06. Kesha - Crazy Beautiful Life.flac
SHA1: 2c6ce887d7f711664300938b9dc0775933b57ebb
File B: 1-06 Crazy Beautiful Life 3.m4a
SHA1: 83fcd95369c7cc86be6a064e50694d263d7a858d
Output:
Default : Primary Sound Driver
Crossfading: NO
16:35:05 : Test started.
16:35:48 : 01/01
16:36:01 : 02/02
16:36:14 : 03/03
16:36:38 : 04/04
16:37:16 : 04/05
16:37:32 : 05/06
16:37:51 : 06/07
16:38:10 : 07/08
16:38:10 : Test finished.
----------
Total: 7/8
p-value: 0.0352 (3.52%)
-- signature --
d3649e959c01b577f25ffb2576a63d2b45ce248d
I should also say that the 256 and 128 tests were made with no long pauses. With that being said Id like to say for those who were deciding if 128 cvbr is good quality (like I was for months) for mobile devices, yes it is and is the one im picking for my mobile even though I could discern the small diferences in higher bitrates. A nice user in this forum ThaCrip gave such good info about encoding for mp3, opus and aac and I agree with him so thnk u. This was just something Id like to say but, if anyones wondering, the difference I heard was so minimal that imo I wont go any higher than 256 (if I have enough space) and no lower than 128 or 96 if space is critical. Sorry for being messy juts wanted to share my thoughts and to have my answer clarified. Hope Im not breaking any rules tho bye