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48 kbps listening test, pretest discussion thread, Pretest thread / Encoder settings
Shade[ST]
post Dec 12 2005, 17:06
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Hello!

After assisting like many of you on the controversy of guruboolez' tests concerning the Nero AAC encoders and having seen many suggestions towards preparing a listening test around 48kbps - in particular with the different HE encoders, I decided to take matters into my own hands.
I currently have 8 samples testing for tonality, transients and stereo separation. These are generally classical music, but also include electronic music, 80s pop, and I might add a jazz recording for ambience reproduction.
As for encoders, I'm stumped.

Should I also include an old version of nero (old being relative) as to see the progress in a general evaluation ? At this bitrate, many encoders is not really a problem, is it? For now, I was thinking :

-Nero AAC Tape / PNS Enabled / HE / High (Should I enable hint track?)
-Ogg Vorbis, latest AoTuV, q -2 to -4 (whatever's approximately the same bitrates ~42-53)
-Lame ABR 48 (any tunings suggested?)
-mp3pro, probably, at any close bitrate I can achieve (adobe audition's encoder)
-Itunes AAC (HE if available)
-CT encoder (winamp 5.12) 48kbps, HE.

If I should use an older nero as well, where can I find it?

Also, could anyone help me prepare the ABC/HR logs? (eg, Sebastian Mares)
Thanks in advance,
Tristan.
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Gabriel
post Dec 13 2005, 12:51
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My opinions is that it could be a good idea to first do an AAC low bitrate test before a low bitrate multiformat test.

This way, we would have less competitors per test, and perhaps more results (in the meaning of more information).

To me competitors would be (at least):
*Apple
*Nero
*CT commercial
*3gpp reference code (ie CT non commercial)

Is any product using some FhG encoder?

I think that bitrate of such test should be 32kbps, as this would allow to use HE-AAC v2 with the 3gpp code.

This way we would know which AAC encoder is better at low bitrates, but also how does the 3gpp reference code fares against commercial encoders.
This would also allow to reduce the number of contenders in a 48kbps multi-format test, as we would already have some info regarding AAC.
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Posts in this topic
- Shade[ST]   48 kbps listening test, pretest discussion thread   Dec 12 2005, 17:06
- - guruboolez   Is it a collective listening test or a personal ex...   Dec 12 2005, 17:10
|- - Shade[ST]   QUOTE (guruboolez @ Dec 12 2005, 10:10 AM)Is ...   Dec 12 2005, 17:14
- - guruboolez   Isn't it a bit premature to start a new pretes...   Dec 12 2005, 17:16
- - Ivan Dimkovic   If it is a collective test, may I ask for delaying...   Dec 12 2005, 17:16
|- - Shade[ST]   QUOTE (Ivan Dimkovic @ Dec 12 2005, 10:16 AM)...   Dec 12 2005, 17:20
|- - naylor83   QUOTE (Shade[ST] @ Dec 12 2005, 06:2...   Dec 12 2005, 17:46
- - Sebastian Mares   I think the whole thing is too rushed. Personally,...   Dec 12 2005, 17:52
|- - naylor83   QUOTE (Sebastian Mares @ Dec 12 2005, 06:52 P...   Dec 12 2005, 18:22
||- - Sebastian Mares   QUOTE (naylor83 @ Dec 12 2005, 06:22 PM)QUOTE...   Dec 12 2005, 18:24
||- - naylor83   QUOTE (Sebastian Mares @ Dec 12 2005, 07:24 P...   Dec 12 2005, 18:34
||- - Shade[ST]   I was thinking maybe about making LAME the low anc...   Dec 12 2005, 21:20
|- - user   QUOTE (Sebastian Mares @ Dec 12 2005, 05:52 P...   Dec 14 2005, 12:00
- - Sebastian Mares   Regarding the encoders again - personally, I would...   Dec 12 2005, 18:32
|- - Latexxx   I'd personally drop mp3pro because its margina...   Dec 12 2005, 21:35
|- - dimzon   QUOTE (Latexxx @ Dec 13 2005, 12:35 AM) mp3 (...   Dec 13 2005, 09:38
- - Gambit   With all respect, Shade[ST], this is a really bad ...   Dec 12 2005, 21:17
- - rjamorim   QUOTE (Shade[ST] @ Dec 12 2005, 02:2...   Dec 13 2005, 00:46
|- - Shade[ST]   QUOTE (rjamorim @ Dec 12 2005, 05:46 PM)QUOTE...   Dec 13 2005, 04:07
|- - naylor83   QUOTE (Shade[ST] @ Dec 13 2005, 05:0...   Dec 13 2005, 10:10
- - Ivan Dimkovic   QUOTE don't forget about 3GP reference encoder...   Dec 13 2005, 10:42
|- - dimzon   QUOTE (Ivan Dimkovic @ Dec 13 2005, 01:42 PM)...   Dec 13 2005, 17:20
- - Gabriel   My opinions is that it could be a good idea to fir...   Dec 13 2005, 12:51
- - Ivan Dimkovic   But @Gabriel, do you think that the 32kbps resutls...   Dec 13 2005, 13:13
|- - stephanV   QUOTE (Ivan Dimkovic @ Dec 13 2005, 01:13 PM)...   Dec 13 2005, 14:05
- - Ivan Dimkovic   QUOTE You are kidding right? I wish - but reading...   Dec 13 2005, 14:17
|- - Shade[ST]   Any word of yet as to how any of these tests are g...   Dec 13 2005, 16:10
- - Ivan Dimkovic   QUOTE Any word of yet as to how any of these tests...   Dec 13 2005, 17:34
|- - IgorC   It wil be good to see not only music samples but a...   Dec 13 2005, 19:40
|- - Halcyon   Before you start any test, I suggest you take the ...   Dec 13 2005, 21:24
- - Ivan Dimkovic   Gabriel and I discussed these ideas - and we will ...   Dec 14 2005, 12:43
- - fpi   Before testing aoTuV beta 4.51 would be interestin...   Dec 14 2005, 16:45
- - gameplaya15143   QUOTE (fpi @ Dec 14 2005, 10:45 AM)Before tes...   Jan 18 2006, 04:15
- - pepoluan   Ahhh... the thread has been resurrected So. Is...   Jan 19 2006, 17:51


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