HydrogenAudio

Hydrogenaudio Forum => Listening Tests => Topic started by: bennetng on 2005-12-22 19:33:41

Title: Finally I can ABX Lame insane
Post by: bennetng on 2005-12-22 19:33:41
Try it yourself, this piece of music is very special... normally I can't ABX between xtreme and lossless. Encoder is lame 3.96.1

(please copy the link and paste on the address bar to download if it can't be downloaded)

http://www.geocities.jp/anothergs/original.zip (http://www.geocities.jp/anothergs/original.zip)


foo_abx v1.2 report
foobar2000 v0.8.3
2005/12/23 00:59:27

File A: file://C:\Documents and Settings\Bennet Ng\Desktop\original.ape
File B: file://C:\Documents and Settings\Bennet Ng\Desktop\001 original.mp3

00:59:28 : Test started.
01:00:02 : 00/01  100.0%
01:00:14 : 01/02  75.0%
01:00:31 : 02/03  50.0%
01:01:26 : 03/04  31.3%
01:01:38 : 04/05  18.8%
01:02:18 : 05/06  10.9%
01:02:31 : 06/07  6.3%
01:03:42 : 07/08  3.5%
01:03:54 : 08/09  2.0%
01:05:06 : 09/10  1.1%
01:05:55 : 10/11  0.6%
01:06:09 : Test finished.

----------
Total: 10/11 (0.6%)
Title: Finally I can ABX Lame insane
Post by: dreamliner77 on 2005-12-22 23:39:37
How about with 3.97b2?
Title: Finally I can ABX Lame insane
Post by: Wombat on 2005-12-22 23:50:13
@bennetng
Can you give me a hint what to listen for?
Title: Finally I can ABX Lame insane
Post by: skelly831 on 2005-12-23 00:09:50
Quote
@bennetng
Can you give me a hint what to listen for?
[a href="index.php?act=findpost&pid=351973"][{POST_SNAPBACK}][/a]

Dude, that's cheating, if you don't know what to look for and don't hear a difference then it's the same to you, if you know what to look for and hear something different chances are it could be placebo.
Title: Finally I can ABX Lame insane
Post by: Axon on 2005-12-23 00:12:29
You have got to be kidding me.
Title: Finally I can ABX Lame insane
Post by: Dibrom on 2005-12-23 00:20:14
Quote
Quote
@bennetng
Can you give me a hint what to listen for?
[a href="index.php?act=findpost&pid=351973"][{POST_SNAPBACK}][/a]

Dude, that's cheating, if you don't know what to look for and don't hear a difference then it's the same to you, if you know what to look for and hear something different chances are it could be placebo.
[a href="index.php?act=findpost&pid=351975"][{POST_SNAPBACK}][/a]


Umm...

It's only "cheating" if this is going on during a listening test.

If you'd been around during the tuning of many audio codecs on this forum in the past, you'd know that often time it is quite common for someone (including myself) to ask for an explanation of the problem that the original poster heard.  There's nothing cheating about this at all, because there's no "contest."

And as for placebo, you rule that out with ABX, which as a testing methodology is indifferent to whether or not you have been told beforehand about an artifact or whether you "discovered" it on your own -- all it measures is whether you can detect it with a specified degree of reliability.
Title: Finally I can ABX Lame insane
Post by: Wombat on 2005-12-23 00:28:04
Quote
Quote
Quote
@bennetng
Can you give me a hint what to listen for?
[a href="index.php?act=findpost&pid=351973"][{POST_SNAPBACK}][/a]

Dude, that's cheating, if you don't know what to look for and don't hear a difference then it's the same to you, if you know what to look for and hear something different chances are it could be placebo.
[a href="index.php?act=findpost&pid=351975"][{POST_SNAPBACK}][/a]


Umm...

It's only "cheating" if this is going on during a listening test.

If you'd been around during the tuning of many audio codecs on this forum in the past, you'd know that often time it is quite common for someone (including myself) to ask for an explanation of the problem that the original poster heard.  There's nothing cheating about this at all, because there's no "contest."

And as for placebo, you rule that out with ABX, which as a testing methodology is indifferent to whether or not you have been told beforehand about an artifact or whether you "discovered" it on your own -- all it measures is whether you can detect it with a specified degree of reliability.
[a href="index.php?act=findpost&pid=351978"][{POST_SNAPBACK}][/a]

Thanks dibrom. If this were a "contest" i´d have lost
Seems like skelly831 is bored of explanations. It has to be a really annoying artifact i don´t get.
Title: Finally I can ABX Lame insane
Post by: bennetng on 2005-12-23 00:38:33
I've listened this Darius Gaiden soundtrack for many times (because I love this soundtrack)... maybe this is the reason that why I can hear the differences.

The biggest difference is in the very beginning, the first synthesizer tone, the lossless one has very "fast" (or hard?) attack (is this called transient? my English is no good) and the mp3 has a very little "fade in" artifact.

I am really not very good at ABX, at most time I can't ABX lame xtreme, vorbis q7, mpc xtreme but this piece of music is really special for me. So I just post and share it.
Title: Finally I can ABX Lame insane
Post by: Wombat on 2005-12-23 00:56:38
Quote
I've listened this Darius Gaiden soundtrack for many times (because I love this soundtrack)... maybe this is the reason that why I can hear the differences.

The biggest difference is in the very beginning, the first synthesizer tone, the lossless one has very "fast" (or hard?) attack (is this called transient? my English is no good) and the mp3 has a very little "fade in" artifact.

I am really not very good at ABX, at most time I can't ABX lame xtreme, vorbis q7, mpc xtreme but this piece of music is really special for me. So I just post and share it.
[a href="index.php?act=findpost&pid=351981"][{POST_SNAPBACK}][/a]

You can´t ABX Vorbis Q7 and mpc xtreme most tme? Well wtf... who can all the time?
I like you offer this sample here, even if there is no backup till now. Maybe skelly831 has no problem with this.
I remember me offering the birds sample 2 years ago and got no backup. Meanwhile the newer lame versions get the problem more obvious and other people can hear it.
So feel free to offer your findings!
Title: Finally I can ABX Lame insane
Post by: skelly831 on 2005-12-23 01:05:34
My bad.
Title: Finally I can ABX Lame insane
Post by: bennetng on 2005-12-23 11:35:13
3.97b2 vs lossless result:

foo_abx v1.2 report
foobar2000 v0.8.3
2005/12/23 19:14:29

File A: unpack://zip|63|file://C:\Documents and Settings\Bennet Ng\Desktop\original.zip|original.ape
File B: file://C:\Documents and Settings\Bennet Ng\Desktop\3.97b.mp3

19:14:29 : Test started.
19:15:02 : 01/01  50.0%
19:15:15 : 02/02  25.0%
19:15:33 : 03/03  12.5%
19:15:41 : 04/04  6.3%
19:16:31 : 05/05  3.1%
19:17:05 : 06/06  1.6%
19:17:18 : 07/07  0.8%
19:17:42 : 08/08  0.4%
19:18:02 : 09/09  0.2%
19:18:48 : 10/10  0.1%
19:19:00 : Test finished.

----------
Total: 10/10 (0.1%)


===========
PS: I can't ABX 3.96.1 and 3.97b2, result is always higher than 50%.
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