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A Plan

So, in order to downsize my digital music collection, I've decided to do a little listening test. I have some good headphones that are sufficient for my listening habits. For a long time, I've ripped my music to AAC at 192kbps. I know for a fact that, for almost every song that was recorded well in the first place, I can tell a difference between 128k and 192k MP3s. But for the most part, I have little experience with 128k and 192k AAC files. So, just for fun, I'm going to do the following:

Find songs that have a good representation of the Fourier series, rip the CD at 44.1k WAV, 192k mp3, 192k aac, 128k mp3, and 128k aac (which should be easily recognizable as a guide).

I'll put all 5 copies of the song in a playlist and tell iTunes to randomize it. Then I'll write down 1-5 what the best to worst is. I'll do this for all 5 songs, and see if I'm consistent. If so, the winning bitrate will be what I decide to rip my CDs at from now on.

I want to actually figure out once and for all what bitrate is truly enough. I will post my results.

Comments

( 6 comments — Leave a comment )
dontsayroscoe
Jul. 1st, 2008 02:57 am (UTC)
Neat idea!

Time consuming, OCD, and anal retentive, but still neat!
happinessiseasy
Jul. 1st, 2008 02:59 am (UTC)
Time consuming, OCD, and anal retentive, but still neat!

I know, right, cause which of those four things am I not?!
chris462
Jul. 1st, 2008 03:04 am (UTC)
Also remember that the D/A circuit on the iPod is generally regarded as pretty bad. :P

I rip 160k MP3 and can't hear the deficiencies until I bust out my $100 headphones or hook something up to my home theater system.
happinessiseasy
Jul. 1st, 2008 03:05 am (UTC)
I was gonna use my computer. Still not the best, but it was good in its day.
skate_or_die82
Jul. 1st, 2008 06:34 pm (UTC)
for me, one of the factors in MP3 vs AAC was the fact that I can stream music from my computer or iPod to my Xbox 360, which doesn't support AAC (last time I checked). i'm sure this isn't a factor for you, but it does affect some of us.

I use MusicBridge to sync between iTunes and Windows Media Player, since the 360 uses WMP to nagivate shared music
happinessiseasy
Jul. 1st, 2008 07:04 pm (UTC)
Nah, I just hook my iPod up to the receiver amp if I want to listen in the den.
( 6 comments — Leave a comment )

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