I figured I would do this thread after comparing multiple formats...
The album i chose for this test was The Smashing Pumpkins - Siamese Dream (grabbed the nearest CD I had in perfect condition)
Ripped using EAC to FLAC (lossless format)
Converted from FLAC to other formats using dbpoweramp
AAC files were ripped and encoded with iTunes (commonly agreed upon as the best AAC encoder)
All lossy files (except CBR wma) encoded to ~192Kbps VBR (this is what i suggest most people rip to)
size comparisons (whole album)
FLAC compression level 8: 371MB
MP3 LAME aps (--alt-preset standard): 86.4MB
Musepack xtreme preset: 87.7MB
Musepack standard preset: 74.1MB
Ogg Vorbis -q 6: 77.1MB
WMA 192Kbps CBR: 86.1MB
WMA 192Kbps VBR 85.8MB
AAC: 86.4MB
WavPack Lossy Mode: 89.2MB
as you can see MP3 and AAC are equal on file size while ogg wins by nearly 10MB
per song comparison wil come later
observations on sound quality
FLAC: no different from the CD because it is a lossless format
MP3: good sound but has the expected differences in quality from the original most of the differences are fairly subtle and the better your equipment the more noticable the differences will be
Musepack xtreme: While I have a slight bias towards ogg this format is definately the best also slightly larger than MP3 and AAC at the same bitrate
Musepack standard: according to the musepack website you should compare standard to alt-preset standard and at ~170Kbps musepack compares favorably to ~192Kbps MP3 and is smaller than ogg
ogg: yes i have a slight bias but i'm not the only one who will tell you ogg is better than mp3... at higher bitrates however the differences between the 2 formats aren't so big
wma: not impressed with this... it's alright but then again i used CBR it sounds about the same as 192kbps CBR mp3
WMA VBR: this is about equal on sound quality to MP3
AAC: about equal with ogg for sound quality
WavPack Lossy Mode: WavPack is most commonly used in lossless mode but it has the ability to do lossy encoding and in lossy mode the sound quality is comparable to musepack standard
Overall...
FLAC: If sound quality is your #1 priority over HD space lossless if the way to go
MP3: THE most widely supported lossy format LAME is the best encoder I suggest using it for your mp3 encoding
Musepack: IMO the best lossy format for sound quality/size however I know of no portable players that support this format (please if you know of one feel free to say something) and some software players don't include musepack support "out of the box"
Ogg Vorbis: sounds better than mp3, smaller file size and there are a few portable players that support it though there is a drawback... while vorbis lets you get more music on the player it also reduces battery life (actual reduction of battery life varies depending on model of player)
WMA: uh... it's alright... many portable players support it
AAC: if you rip with itunes i strongly suggest this format over mp3 especially if you also have an ipod
WavPack: a good format for lossless and it's lossy mode while good isn't worth bothering with unless you are encoding high resolution audio (which really shouldn't be lossily encoded) also no hardware players support wavpack at this time
The album i chose for this test was The Smashing Pumpkins - Siamese Dream (grabbed the nearest CD I had in perfect condition)
Ripped using EAC to FLAC (lossless format)
Converted from FLAC to other formats using dbpoweramp
AAC files were ripped and encoded with iTunes (commonly agreed upon as the best AAC encoder)
All lossy files (except CBR wma) encoded to ~192Kbps VBR (this is what i suggest most people rip to)
size comparisons (whole album)
FLAC compression level 8: 371MB
MP3 LAME aps (--alt-preset standard): 86.4MB
Musepack xtreme preset: 87.7MB
Musepack standard preset: 74.1MB
Ogg Vorbis -q 6: 77.1MB
WMA 192Kbps CBR: 86.1MB
WMA 192Kbps VBR 85.8MB
AAC: 86.4MB
WavPack Lossy Mode: 89.2MB
as you can see MP3 and AAC are equal on file size while ogg wins by nearly 10MB
per song comparison wil come later
observations on sound quality
FLAC: no different from the CD because it is a lossless format
MP3: good sound but has the expected differences in quality from the original most of the differences are fairly subtle and the better your equipment the more noticable the differences will be
Musepack xtreme: While I have a slight bias towards ogg this format is definately the best also slightly larger than MP3 and AAC at the same bitrate
Musepack standard: according to the musepack website you should compare standard to alt-preset standard and at ~170Kbps musepack compares favorably to ~192Kbps MP3 and is smaller than ogg
ogg: yes i have a slight bias but i'm not the only one who will tell you ogg is better than mp3... at higher bitrates however the differences between the 2 formats aren't so big
wma: not impressed with this... it's alright but then again i used CBR it sounds about the same as 192kbps CBR mp3
WMA VBR: this is about equal on sound quality to MP3
AAC: about equal with ogg for sound quality
WavPack Lossy Mode: WavPack is most commonly used in lossless mode but it has the ability to do lossy encoding and in lossy mode the sound quality is comparable to musepack standard
Overall...
FLAC: If sound quality is your #1 priority over HD space lossless if the way to go
MP3: THE most widely supported lossy format LAME is the best encoder I suggest using it for your mp3 encoding
Musepack: IMO the best lossy format for sound quality/size however I know of no portable players that support this format (please if you know of one feel free to say something) and some software players don't include musepack support "out of the box"
Ogg Vorbis: sounds better than mp3, smaller file size and there are a few portable players that support it though there is a drawback... while vorbis lets you get more music on the player it also reduces battery life (actual reduction of battery life varies depending on model of player)
WMA: uh... it's alright... many portable players support it
AAC: if you rip with itunes i strongly suggest this format over mp3 especially if you also have an ipod
WavPack: a good format for lossless and it's lossy mode while good isn't worth bothering with unless you are encoding high resolution audio (which really shouldn't be lossily encoded) also no hardware players support wavpack at this time
eat right, exercise, die anyway