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Multiformat Listening Test @ 128 kbps - OPEN
Sebastian Mares
post Dec 5 2005, 16:17
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Hello!

I would like to announce the launch of my public, multiformat listening test @ 128 kbps.

The encoders featured are:
  • Nero AAC 3.1.0.2
  • iTunes AAC 6.0.1.3
  • LAME 3.97 Beta 2
  • Ogg Vorbis AoTuV 4.51 Beta
  • WMA Professional 9.1
  • Shine 0.1.4 (Low Anchor)
For further information on how to participate, please visit the test announcement page:
http://www.maresweb.de/listening-tests/mf_128_1.php

The test is scheduled to end on December 25th, 2005.

Update: The test was extended to end on January 13th, 2006.

Thank you!

Regards,
Sebastian Mares

This post has been edited by Sebastian Mares: Dec 31 2005, 20:58


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IgorC
post Dec 6 2005, 20:20
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VBR can produce different size. It will be normal if codec A will produce bigger size than codec B on one half of samples and codec B will produce bigger size on another half of samples.

However in this test. Itunes AAC always produces bigger size than Nero AAC.

1. +10%
2. +7.7%
3. +4.6%
4. +15%
5. +12%
6. +17.3%
7. +1.76%
8. +11.85%
9. +13.3 %
10. +9%
11. +8.3%
12. +12.6%
13. +10.37%
14. +15%
15. +9.3%
16. +8.57%
17. +9.1%
18. +1.74%

Neither one Nero AAC sample has a higher bitrate than Itunes one.
Probability that it happens only on this 18 samples is quite low.
It's not hard to assume iTunes will be better on this test due to quite big oversize.
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Sebastian Mares
post Dec 6 2005, 20:46
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QUOTE (IgorC @ Dec 6 2005, 08:20 PM)
VBR can produce different size. It will be normal if codec A will produce bigger size than codec B on one half of samples and codec B will produce bigger size on another half of samples.

However in this test. Itunes AAC always produces bigger size than Nero AAC.

1. +10%
2. +7.7%
3. +4.6%
4. +15%
5. +12%
6. +17.3%
7. +1.76%
8. +11.85%
9. +13.3 %
10. +9%
11. +8.3%
12. +12.6%
13. +10.37%
14. +15%
15. +9.3%
16. +8.57%
17. +9.1%
18. +1.74%

Neither one Nero AAC sample has a higher bitrate than Itunes  one. 
Probability that it happens only on this 18 samples is quite low.
It's not hard to assume iTunes will be better on this test  due to quite big oversize.
*


And that's why only a difference of 10% is tolerated. If one encoder is smart and assigns more bits - well - it's smart. tongue.gif
Also high bitrate doesn't automatically mean good quality. wink.gif


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Alex B
post Dec 6 2005, 20:58
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The sample bitrates are completely irrelevant and should be ignored. The VBR settings used with the other encoders besides Nero were chosen because they are likely to produce the same average bitrate with a library of complete tracks. The encoders are free to use any bitrate for the samples. Actually, we have no idea about the peak bitrates inside the samples. The only thing what matters is quality. Different encoders use different means.

The Nero developers who are aware of this criterion instructed the settings for this new untested Nero encoder.

EDIT

The older Nero 7 encoder produced the same average bitrate with the other encoders when the "Internet" VBR setting was tested by guruboolez and myself.

EDIT 2

I am going to add the new Nero version to my bitrate table soon.

This post has been edited by Alex B: Dec 6 2005, 21:09


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Posts in this topic
- Sebastian Mares   Multiformat Listening Test @ 128 kbps - OPEN   Dec 5 2005, 16:17
- - Sebastian Mares   For those using BitTorrent, statistics are availab...   Dec 5 2005, 16:19
- - ff123   Can you reformat the readme.txt file so that it wr...   Dec 5 2005, 16:39
|- - Sebastian Mares   QUOTE (ff123 @ Dec 5 2005, 04:39 PM)Can you r...   Dec 5 2005, 16:40
- - schnofler   Just a little note: If you can't hear sound wh...   Dec 5 2005, 17:24
|- - ShowsOn   QUOTE (schnofler @ Dec 6 2005, 01:24 AM)Just ...   Dec 5 2005, 17:27
|- - IgorC   aacenc32.dll ver. 3.1.0.2. Nero7 has 3.0.0.2. I...   Dec 5 2005, 17:36
|- - Sebastian Mares   QUOTE (IgorC @ Dec 5 2005, 05:36 PM)aacenc32....   Dec 5 2005, 17:40
|- - IgorC   QUOTE (Sebastian Mares @ Dec 5 2005, 08:40 AM...   Dec 5 2005, 17:49
- - Alex B   I made a html version of the readme.txt file. I fi...   Dec 5 2005, 17:42
|- - Sebastian Mares   QUOTE (Alex B @ Dec 5 2005, 05:42 PM)I made a...   Dec 5 2005, 17:44
|- - Alex B   QUOTE (Alex B @ Dec 5 2005, 06:42 PM)I made a...   Dec 5 2005, 19:45
- - Alex B   Use it as you like. Be my guest. Typos (if i reme...   Dec 5 2005, 17:49
|- - Sebastian Mares   QUOTE (Alex B @ Dec 5 2005, 05:49 PM)Use it a...   Dec 5 2005, 17:54
- - Gambit   Conduct, conduct, conduct...   Dec 5 2005, 17:54
- - Alex B   They were like this after I pasted the text file i...   Dec 5 2005, 18:00
- - Alex B   Sebastian, The TorrentStorm link in my html is wr...   Dec 5 2005, 18:41
|- - Sebastian Mares   QUOTE (Alex B @ Dec 5 2005, 06:41 PM)Sebastia...   Dec 5 2005, 18:45
- - Alex B   I have currently 18 BitTornado clients running. It...   Dec 5 2005, 19:01
|- - Gambit   QUOTE (Alex B @ Dec 5 2005, 07:01 PM)I have c...   Dec 5 2005, 19:05
|- - Sebastian Mares   QUOTE (Gambit @ Dec 5 2005, 07:05 PM)Oh, and ...   Dec 5 2005, 19:16
- - eisa01   Hey, I'm wondering if I should try and partici...   Dec 5 2005, 19:06
|- - Sebastian Mares   QUOTE (eisa01 @ Dec 5 2005, 07:06 PM)Hey, I...   Dec 5 2005, 19:18
|- - IgorC   Hm ... Why nobody care about final size? Itīs alre...   Dec 5 2005, 19:55
|- - Sebastian Mares   QUOTE (IgorC @ Dec 5 2005, 07:55 PM)Hm ... Wh...   Dec 5 2005, 20:04
|- - IgorC   QUOTE (Sebastian Mares @ Dec 5 2005, 11:04 AM...   Dec 5 2005, 20:12
- - Garf   If bittorrent is an issue, they can go as HTTP or ...   Dec 5 2005, 19:56
- - ep0ch   Why are there 18 torrents and not just one big one...   Dec 5 2005, 20:03
|- - Sebastian Mares   QUOTE (ep0ch @ Dec 5 2005, 08:03 PM)Why are t...   Dec 5 2005, 20:06
|- - jetpower   QUOTE (Sebastian Mares @ Dec 5 2005, 09:06 PM...   Dec 5 2005, 20:17
- - Sebastian Mares   OK, as I said, I am going to forward this to Rober...   Dec 5 2005, 20:33
- - sTisTi   Oh damn, these codecs are really too good for me ...   Dec 5 2005, 21:10
|- - Shade[ST]   Sample 2 has one of them with quite noticeable low...   Dec 5 2005, 21:27
|- - sTisTi   QUOTE (Shade[ST] @ Dec 5 2005, 09:27...   Dec 5 2005, 22:31
|- - naylor83   QUOTE (Shade[ST] @ Dec 5 2005, 10:27...   Dec 6 2005, 16:23
|- - Shade[ST]   QUOTE (naylor83 @ Dec 6 2005, 09:23 AM)QUOTE ...   Dec 6 2005, 19:52
- - naylor83   Oh my... This is not going to be easy... Think...   Dec 5 2005, 22:30
- - naylor83   Oh, btw - ABC/HR seems to start playing the sample...   Dec 5 2005, 23:06
|- - Sebastian Mares   QUOTE (naylor83 @ Dec 5 2005, 11:06 PM)Oh, bt...   Dec 5 2005, 23:07
|- - naylor83   QUOTE (Sebastian Mares @ Dec 6 2005, 12:07 AM...   Dec 5 2005, 23:13
|- - Sebastian Mares   QUOTE (naylor83 @ Dec 5 2005, 11:13 PM)QUOTE ...   Dec 5 2005, 23:23
|- - schnofler   QUOTE (naylor83 @ Dec 5 2005, 02:13 PM)What I...   Dec 5 2005, 23:24
|- - naylor83   QUOTE (schnofler @ Dec 6 2005, 12:24 AM)QUOTE...   Dec 5 2005, 23:31
|- - Sebastian Mares   QUOTE (naylor83 @ Dec 5 2005, 11:31 PM)QUOTE ...   Dec 5 2005, 23:33
||- - naylor83   QUOTE (Sebastian Mares @ Dec 6 2005, 12:33 AM...   Dec 5 2005, 23:35
|- - schnofler   QUOTE (naylor83 @ Dec 5 2005, 02:31 PM)QUOTE ...   Dec 5 2005, 23:42
|- - naylor83   QUOTE (schnofler @ Dec 6 2005, 12:42 AM)That ...   Dec 5 2005, 23:56
- - rjamorim   Here's the torrent with all samples: http://ww...   Dec 5 2005, 23:30
- - skelly831   For a 128kbps test, this if f'ing hard! Th...   Dec 6 2005, 01:59
|- - rjamorim   QUOTE (skelly831 @ Dec 5 2005, 10:59 PM)For a...   Dec 6 2005, 02:15
|- - skelly831   QUOTE (rjamorim @ Dec 5 2005, 05:15 PM)QUOTE ...   Dec 6 2005, 02:27
|- - rjamorim   QUOTE (skelly831 @ Dec 5 2005, 11:27 PM)LOL...   Dec 6 2005, 02:52
|- - skelly831   QUOTE (rjamorim @ Dec 5 2005, 05:52 PM)I have...   Dec 6 2005, 02:56
- - jido   Ok, so who wrote a *nix script to decompress all t...   Dec 6 2005, 03:23
|- - ErikS   QUOTE (jido @ Dec 6 2005, 04:23 AM)Ok, so who...   Dec 6 2005, 05:52
||- - Sebastian Mares   QUOTE (ErikS @ Dec 6 2005, 05:52 AM)... Tha...   Dec 6 2005, 09:13
|- - caligae   QUOTE (jido @ Dec 6 2005, 04:23 AM)Ok, so who...   Dec 6 2005, 09:19
|- - eisa01   QUOTE (caligae @ Dec 6 2005, 09:19 AM)QUOTE (...   Dec 6 2005, 15:14
- - ronnie_t   I will be hosting the files on razorback2 CODEed2k...   Dec 6 2005, 04:43
- - martythestickman   hey guys. just finished setting up all the files...   Dec 6 2005, 08:00
- - Sebastian Mares   Could someone announce the test on D9 and /. pleas...   Dec 6 2005, 09:35
|- - kurtnoise   QUOTE (Sebastian Mares @ Dec 6 2005, 09:35 AM...   Dec 6 2005, 10:25
- - kwanbis   whats D9?   Dec 6 2005, 13:25
- - Alex B   http://www.doom9.org/ http://slashdot.org/   Dec 6 2005, 13:29
- - kwanbis   i was think in of digg.com ... we should digg it   Dec 6 2005, 13:52
- - Atreus   Digg it! Let's try to get this test on th...   Dec 6 2005, 16:35
- - ep0ch   Doesn't telling everyone where the artifacts a...   Dec 6 2005, 20:04
|- - sTisTi   QUOTE (ep0ch @ Dec 6 2005, 08:04 PM)Doesn...   Dec 6 2005, 20:37
||- - Sebastian Mares   QUOTE (sTisTi @ Dec 6 2005, 08:37 PM)QUOTE (e...   Dec 6 2005, 20:44
||- - naylor83   QUOTE (Sebastian Mares @ Dec 6 2005, 09:44 PM...   Dec 6 2005, 21:52
|- - naylor83   QUOTE (ep0ch @ Dec 6 2005, 09:04 PM)Doesn...   Dec 6 2005, 21:47
- - Sebastian Mares   It is.   Dec 6 2005, 20:07
- - IgorC   VBR can produce different size. It will be normal ...   Dec 6 2005, 20:20
|- - Sebastian Mares   QUOTE (IgorC @ Dec 6 2005, 08:20 PM)VBR can p...   Dec 6 2005, 20:46
|- - IgorC   QUOTE (Sebastian Mares @ Dec 6 2005, 11:46 AM...   Dec 6 2005, 20:52
||- - Sebastian Mares   QUOTE (IgorC @ Dec 6 2005, 08:52 PM)So if Ner...   Dec 6 2005, 21:34
|- - Alex B   The sample bitrates are completely irrelevant and ...   Dec 6 2005, 20:58
- - Sebastian Mares   That is true, too.   Dec 6 2005, 22:00
|- - naylor83   QUOTE (Sebastian Mares @ Dec 6 2005, 11:00 PM...   Dec 6 2005, 22:13
|- - Sebastian Mares   QUOTE (naylor83 @ Dec 6 2005, 10:13 PM)QUOTE ...   Dec 6 2005, 23:19
|- - caligae   QUOTE (Sebastian Mares @ Dec 7 2005, 12:19 AM...   Dec 7 2005, 00:57
|- - rjamorim   QUOTE (caligae @ Dec 6 2005, 09:57 PM)If this...   Dec 7 2005, 01:48
|- - naylor83   QUOTE (rjamorim @ Dec 7 2005, 02:48 AM)QUOTE ...   Dec 7 2005, 06:54
|- - Sebastian Mares   QUOTE (naylor83 @ Dec 7 2005, 06:54 AM)QUOTE ...   Dec 7 2005, 06:59
|- - Lyx   QUOTE But then again, that is true for any listeni...   Dec 7 2005, 07:03
- - rjamorim   Jesus Christ! Discussing artifacts ist verbot...   Dec 6 2005, 23:05
- - Sebastian Mares   Edit: Roberto was faster.   Dec 6 2005, 23:06
- - eisa01   My fear is that I'll only be able to figure ou...   Dec 7 2005, 01:53
|- - Oliver   QUOTE (eisa01 @ Dec 6 2005, 08:53 PM)My fear ...   Dec 7 2005, 03:09
- - markanini   So far I've done three samples and sure it...   Dec 7 2005, 02:28
- - Dibrom   It has already been requested twice that people st...   Dec 7 2005, 03:12
|- - Shade[ST]   I found an issue with the delivered ABC/HR program...   Dec 7 2005, 04:10
|- - ErikS   QUOTE (Shade[ST] @ Dec 7 2005, 05:10...   Dec 7 2005, 04:32
||- - Shade[ST]   I am using the latest JRE. I reformatted two days ...   Dec 7 2005, 05:03
||- - naylor83   QUOTE (Shade[ST] @ Dec 7 2005, 06:03...   Dec 7 2005, 06:51
|- - caligae   QUOTE (Shade[ST] @ Dec 7 2005, 05:10...   Dec 7 2005, 09:09
|- - Shade[ST]   QUOTE (caligae @ Dec 7 2005, 02:09 AM)I don...   Dec 7 2005, 09:26
- - plonk420   RareWares seems to be sending .TORRENT files as wr...   Dec 7 2005, 07:57
- - SpacemanSpiff0x0   Holy crap, I just finished the test and I must say...   Dec 7 2005, 08:01
- - Shade[ST]   QUOTE (SpacemanSpiff0x0 @ Dec 7 2005, 01:01 A...   Dec 7 2005, 08:09
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