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quality of amazon and itunes mp3s
crodgers
post Jun 22 2012, 04:45
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Does anyone know what the quality of mp3s is from Amazon mp3?

What about the quality of mp3s from iTunes (the store, not ripping on pc)?

How are either of these qualities compared to buying a CD and ripping it myself with EAC and lame?
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crodgers
post Jun 22 2012, 15:14
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For my own ripping and encoding, I use EAC and let it launch RazorLame. My current (EAC) settings for RazorLame are:

path: G:\Program Files\Exact Audio Copy\lame.3.97.b2.exe
Additional command-line options: -V2 --vbr-new

Bit rate: 224 kBit/s
[X] Delete WAV after compression
[ ] Use CRC check
[X] Add ID 3 tag
[X] Check for external programs return code

(*) High quality
( ) Low quality

Looking at the properties of an mp3 in foobar2000, it shows encoding settings as:
lame.3.97.b2.exe -h -b 224-V2 --vbr-new

Does that seem reasonable? How does that compare to what amazon and itunes are releasing?

This post has been edited by crodgers: Jun 22 2012, 15:49
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slks
post Jul 4 2012, 19:35
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QUOTE (crodgers @ Jun 22 2012, 09:14) *
For my own ripping and encoding, I use EAC and let it launch RazorLame. My current (EAC) settings for RazorLame are:

path: G:\Program Files\Exact Audio Copy\lame.3.97.b2.exe
Additional command-line options: -V2 --vbr-new

Bit rate: 224 kBit/s
[X] Delete WAV after compression
[ ] Use CRC check
[X] Add ID 3 tag
[X] Check for external programs return code

(*) High quality
( ) Low quality

Looking at the properties of an mp3 in foobar2000, it shows encoding settings as:
lame.3.97.b2.exe -h -b 224-V2 --vbr-new

Does that seem reasonable? How does that compare to what amazon and itunes are releasing?


The "-b 224" forces a minimum bit rate of 224 kb/s, which is going to inflate the file size and makes your files not "true" VBR. EAC is adding the "-b 224" to the command line because you've selected that bit rate in the drop-down menu. I never liked this behavior of EAC, since it only makes sense if you're encoding CBR. It's been a while since I used EAC, but there should be a drop-down menu somewhere that lets you select your format (which is currently going to be "MP3" or "LAME" or something) - What you need to do is change it to "User-defined encoder" or "Custom encoder" or equivalent. If you have it set to custom encoder, EAC isn't going to add any extra command line arguments besides what you manually type in.


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Posts in this topic
- crodgers   quality of amazon and itunes mp3s   Jun 22 2012, 04:45
- - eahm   Amazon = MP3 (LAME) (.mp3) VBR V0 iTunes (Music S...   Jun 22 2012, 04:54
|- - Engelsstaub   QUOTE (eahm @ Jun 21 2012, 22:54) ...iTun...   Jun 22 2012, 11:58
|- - HamilcarBarca   QUOTE (eahm @ Jun 21 2012, 21:54) Amazon ...   Jun 22 2012, 22:26
- - RobertoDomenico   At those bit-rates under abx tests it would be ext...   Jun 22 2012, 06:14
- - slks   I've never used Amazon MP3 myself, but I recal...   Jun 22 2012, 09:46
- - kornchild2002   They do vary depending on what was provided to the...   Jun 22 2012, 10:29
|- - crodgers   QUOTE (kornchild2002 @ Jun 22 2012, 05:29...   Jun 22 2012, 12:11
|- - kornchild2002   QUOTE (crodgers @ Jun 22 2012, 05:11) So,...   Jun 22 2012, 19:41
- - Porcus   I wouldn't worry that much about possibly audi...   Jun 22 2012, 12:16
- - crodgers   For my own ripping and encoding, I use EAC and let...   Jun 22 2012, 15:14
|- - slks   QUOTE (crodgers @ Jun 22 2012, 09:14) For...   Jul 4 2012, 19:35
- - eahm   crodgers, don't worry about the quality in ter...   Jun 22 2012, 16:20
- - Jedi82   Why is so difficult for these company say to us wh...   Jun 22 2012, 20:58
|- - kornchild2002   QUOTE (Jedi82 @ Jun 22 2012, 13:58) Why i...   Jun 23 2012, 00:51
- - Aleron Ives   Amazon does indeed bury that page, but it does exi...   Jun 23 2012, 06:26
|- - Porcus   QUOTE (Aleron Ives @ Jun 23 2012, 07:26) ...   Jun 23 2012, 07:03
- - kornchild2002   Thanks Aleron for providing that link. I gave up ...   Jun 23 2012, 13:00
- - Jedi82   also the AAC files download via iTunes match are T...   Jun 24 2012, 12:28
- - db1989   You could search. One example for the query iTunes...   Jun 24 2012, 12:35
- - Blutarsky   While attempting to abandon Apple for my rare ...   Oct 21 2012, 15:29
|- - lvqcl   QUOTE (Blutarsky @ Oct 21 2012, 18:29) an...   Oct 21 2012, 15:48
|- - Blutarsky   QUOTE (lvqcl @ Oct 21 2012, 09:48) QUOTE ...   Oct 21 2012, 16:28
- - lvqcl   I just wanted to say that you compare AAC (M4A fil...   Oct 21 2012, 16:40
|- - Blutarsky   QUOTE (lvqcl @ Oct 21 2012, 10:40) I just...   Oct 21 2012, 16:43
|- - Kohlrabi   QUOTE (Blutarsky @ Oct 21 2012, 17:43) QU...   Oct 21 2012, 17:54
- - [JAZ]   @Blutarsky: From your post and replies to what oth...   Oct 21 2012, 19:04
- - Porcus   It strikes me that perceptual noise substitution i...   Oct 22 2012, 00:28


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