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Should i start using AAC? Can you notice a better quality?
Bahamut2
post Jan 2 2012, 06:19
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I have read everywhere that it is better than MP3, but will i be able to notice the difference?
I encode all my files to VBR -V0 and i don't know anything about AAC, what would be the equivalent encoding settings for AAC?

Can you people really notice that theyre is a reall difference in quality? I want to test it by myself (encoding always it max quality off course) but first i want to ask here.
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Stillbruch
post Jan 12 2012, 11:00
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Hi everyone,

This is my first post in this forum, and I "accidentally" found this thread on Google. However, I find your discussion quite interesting, that's why I'd like to join in.

First, I have a small recording studio for mostly private recordings. I do not use expensive equipment, but still I think that the setup is pretty decent (Yamaha HS80M, DYNAUDIO BM5A MKII, AKG K 601 and AKG K 701). So much for my equipment - I'd like to place emphasis on the reason why there are Lossy Audio Compression Codecs at all. Well, nomen est nomen, they make your audio tracks smaller. I know a lot of people with decent or expensive equipment who compress their audio with a Lossy Compression Codec using a very high to highest quality setting (e.g. LAME MP3 -V0 or Nero AAC -q > 0.8). In my honest opinion, this doesn't make any sense.
Let me explain: Every Lossy Compression Codec makes use psychoacoustic models to omit parts of a sample, which are irrelevant to the human ear (I do not explain this any further, as most of you should know that). The downside is: There are so called "problem samples" (as already mentioned in another post above) - and I'm talking about samples and not necessarely entire tracks - which cause the compression algorithm to fail. Failing in compressing a problem sample is, most importantly, less a matter of the bitrate or the quality you are using, but more a matter of the algorithm itself. So, for example, if a LAME MP3 -V2 compression fails to return a clean sample of such a "problem sample", it is most likely that it will also fail at -V0. Same applies to other Lossy Compression Codecs.
The question is: Does your audio track contain such problem samples? I can't know, but in a well produced and mastered mainstream audio track, problem samples occur very rarely. I encourage you to give LAME MP -V3 or even -V4 (or equivalent "medium" settings with other codecs) a try at ABX (but please, do it correctly). The reason behind those kinds of compression is, as I've already mentioned, to significantly reduce the size of your audio tracks. If you encoded a track with a lot of problem samples at -V0 (or equivalent in other codecs), you'd be busted and could have used a lossless compression instead, since the difference in size wouldn't be that big anymore.

Back to the topic itself: The Nero AAC or simply AAC codecs are very powerful on lower bitrates compared to MP3. Any 96 kbps MP3 almost always sound horrible, while AAC-files with a similar size does very well. If you've got plenty of space (and battery on portable devices), it doesn't make any significant differences whether you use LAME or any kind of AAC, as long as the settings are decent.

Have a nice day! biggrin.gif
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- Bahamut2   Should i start using AAC? Can you notice a better quality?   Jan 2 2012, 06:19
- - Ron Jones   Can I tell the difference between ~256kbps MP3 and...   Jan 2 2012, 07:04
- - Bahamut2   Im going to make my first ABX test soon, but i wan...   Jan 2 2012, 07:42
- - hlloyge   AAC is, technicaly, a bit more advanced codec than...   Jan 2 2012, 07:52
- - mjb2006   If you do hear a difference in a certain piece of ...   Jan 2 2012, 08:45
- - Bahamut2   I did a quick test with foobar and im surprised i ...   Jan 2 2012, 14:09
|- - markanini   QUOTE (Bahamut2 @ Jan 2 2012, 14:09) Anyw...   Jan 2 2012, 14:21
|- - Nessuno   QUOTE (markanini @ Jan 2 2012, 14:21) QUO...   Jan 10 2012, 20:26
|- - Porcus   QUOTE (Nessuno @ Jan 10 2012, 20:26) I fo...   Jan 12 2012, 12:05
|- - Nessuno   QUOTE (Porcus @ Jan 12 2012, 12:05) QUOTE...   Jan 12 2012, 16:44
||- - Porcus   QUOTE (Nessuno @ Jan 12 2012, 16:44) I wa...   Jan 12 2012, 19:50
|- - polemon   QUOTE (Porcus @ Jan 12 2012, 12:05) QUOTE...   Feb 2 2012, 03:45
- - lvqcl   An example of a problem sample (specific for Nero ...   Jan 2 2012, 14:29
- - apodtele   This is yet another "discussion" initiat...   Jan 2 2012, 15:53
|- - db1989   QUOTE (apodtele @ Jan 2 2012, 14:53) This...   Jan 2 2012, 16:03
- - subinbar   I think for most people to be able to tell the dif...   Jan 10 2012, 15:12
- - Porcus   QUOTE (Bahamut2 @ Jan 2 2012, 06:19) I en...   Jan 10 2012, 17:24
- - JunkieXL   I used to use LAME v1 for all of the files I would...   Jan 10 2012, 20:22
|- - Defsac   QUOTE (JunkieXL @ Jan 11 2012, 06:22) LAM...   Jan 23 2012, 09:40
|- - Nessuno   Anyway, if one uses XLD or any other QuickTime fro...   Jan 23 2012, 18:22
|- - slks   QUOTE (Nessuno @ Jan 23 2012, 11:22) Anyw...   Feb 1 2012, 10:13
|- - C.R.Helmrich   QUOTE (slks @ Feb 1 2012, 11:13) the rece...   Feb 1 2012, 22:43
- - Stillbruch   Hi everyone, This is my first post in this forum,...   Jan 12 2012, 11:00
|- - mjb2006   QUOTE (Stillbruch @ Jan 12 2012, 03:00) A...   Jan 12 2012, 11:47
|- - probedb   QUOTE (Stillbruch @ Jan 12 2012, 10:00) A...   Jan 12 2012, 12:15
|- - Nessuno   QUOTE (probedb @ Jan 12 2012, 12:15) QUOT...   Jan 12 2012, 15:42
- - Stillbruch   I apologise for that claim. Since English is not m...   Jan 12 2012, 15:23
- - HTS   Quick question. Wikipedia says: QUOTE The MPEG-2...   Jan 29 2012, 03:11
|- - IgorC   QUOTE (HTS @ Jan 28 2012, 23:11) Quick qu...   Jan 29 2012, 08:19
- - shadowking   The modern lossy bitrate is far too bloated. Compa...   Jan 29 2012, 04:16
|- - HTS   QUOTE (shadowking @ Jan 28 2012, 22:16) T...   Jan 29 2012, 04:44
|- - aprofromindia   QUOTE (shadowking @ Jan 29 2012, 05:16) T...   Jun 15 2013, 10:29
|- - TomasPin   QUOTE (aprofromindia @ Jun 15 2013, 06:29...   Jun 15 2013, 20:26
- - shadowking   Yes. What I am trying to say is that at 250..300k ...   Jan 29 2012, 06:12
- - zima   QUOTE (Bahamut2 @ Jan 2 2012, 07:42) I re...   Jan 29 2012, 12:59
|- - hlloyge   QUOTE (zima @ Jan 29 2012, 13:59) QUOTE (...   Jan 29 2012, 22:01
- - RobertoDomenico   iTunes Store is 256 AAC with no DRM everywhere no ...   Jan 29 2012, 13:58
- - HTS   Does anyone know what does apple mean by the 0-127...   Jan 29 2012, 19:38
- - lvqcl   Why do you think that it has some hidden meaning?   Jan 29 2012, 21:10
- - adlai   the answer is yes. I moved years ago and I haven...   Jan 29 2012, 23:05
|- - saratoga   QUOTE (adlai @ Jan 29 2012, 17:05) Also, ...   Jan 29 2012, 23:20
|- - adlai   most of it is for stupid stuff like tagging files ...   Jan 29 2012, 23:25
|- - saratoga   So if what you really meant is that Lame is active...   Jan 29 2012, 23:37
|- - Defsac   QUOTE (adlai @ Jan 30 2012, 09:25) most o...   Feb 27 2012, 09:57
|- - nu774   QUOTE (Defsac @ Feb 27 2012, 17:57) QUOTE...   Feb 27 2012, 11:29
|- - Defsac   QUOTE (nu774 @ Feb 27 2012, 21:29) QUOTE ...   Feb 27 2012, 12:37
|- - nu774   QUOTE (Defsac @ Feb 27 2012, 20:37) I ver...   Feb 27 2012, 14:24
|- - TechVsLife   As a practical matter, if you notice artifacts tha...   Mar 24 2012, 18:49
- - IgorC   3.99 fills bitrate gap between the V0 and CBR 320 ...   Jan 30 2012, 00:05
- - simonh   Personally, i'd say stick with what you know a...   Mar 24 2012, 21:35
- - RobertoDomenico   The only reason i would use AAC is if you live in ...   Mar 25 2012, 00:05
- - greynol   I presume you mean the problem when streaming from...   Mar 25 2012, 02:00
- - RobertoDomenico   It's not an actual fault of Lame, the issue is...   Mar 25 2012, 05:41
- - greynol   It doesn't matter if -mj and -q0 are there. Th...   Jun 15 2013, 20:31
|- - TomasPin   QUOTE (greynol @ Jun 15 2013, 16:31) It d...   Jun 15 2013, 20:57
- - db1989   It should be specified that -M is not a valid sw...   Jun 16 2013, 01:08


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