I've been debating switching from CD purchases to downloads for a while considering they all end up digital now anyway and services like Amazon and iTunes offer 256kb/s bitrate files that are DRM free. However normally I encode at 320kb/s being unwilling to surrender such a large portion of my hard drive to the space necessary to have all lossless.
I did a few tests and didn't really notice a major difference between a track encoded to AAC 256kb/s VBR and AAC 320kb/s CBR. So I've started debating reimporting my library at 256.
What I was hoping was other people's takes on the idea as well as their experiences with the quality of these kinds of files verse other higher bitrate files.
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Choosing the right bitrate for AACs?
#2
Posted 12 May 2008 - 11:29 PM
Hey Doug,
To me, it all depends on if you're keeping the CD's or not. If you're keeping them, then import however small you feel you need to... you can always fix it later if you want to.
However, I converted my entire library a couple years ago, and sold off the CDs, and to me, there was no way I was going to save that music anything less than lossless. Frankly, hard drive space these days is so cheap, that it's not really a big deal... I had around 1500 CDs whic, in lossless format take up between 250 and 300 GB of storage. I bought a good firewire external drive and use it to keep all my music and photography work, and was money well spent (I actually bought two, with one of them now living in my car, getting syncd up weekly... acting as an offsite backup).
So for daily listening (running my music through my computer, wirelessly to an Apple Express with optical inputs into my stereo) I am using the lossless. I keep a separate library of the exact same music, but saved at AAC 224 - for my ipod. I did some listening tests, both with good headphones and through my stereo, and that is the point where I felt like I wasn't missing too much in terms of the highs and the details, but was also getting a good return in terms of file sizes that 250 + gb fits on my 60 gb ipod with a little room left for episodes of Battlestar Galactica, for when I'm on a plane here or there).
To me, playing music through a somewhat good stereo system, I prefer to have it be as clean as possible... lossless files and a digital/optical input to the stereo... that gives me better sound than my older set up with the CD players hooked up through RCA cables, and like I said, I feel like the cost of hard drives is cheap enough that having songs be around 30 mb each isn't a big deal. If you feel like you can't afford that hard drive space, and dont' want to purchase an external, then I recommend just taking a couple of your favorite songs, converting them at a few different bit rates, and deciding where the right trade off is for you. I expect that pretty much everyone is going to have different feelings about that...
Good luck!
Stephen
To me, it all depends on if you're keeping the CD's or not. If you're keeping them, then import however small you feel you need to... you can always fix it later if you want to.
However, I converted my entire library a couple years ago, and sold off the CDs, and to me, there was no way I was going to save that music anything less than lossless. Frankly, hard drive space these days is so cheap, that it's not really a big deal... I had around 1500 CDs whic, in lossless format take up between 250 and 300 GB of storage. I bought a good firewire external drive and use it to keep all my music and photography work, and was money well spent (I actually bought two, with one of them now living in my car, getting syncd up weekly... acting as an offsite backup).
So for daily listening (running my music through my computer, wirelessly to an Apple Express with optical inputs into my stereo) I am using the lossless. I keep a separate library of the exact same music, but saved at AAC 224 - for my ipod. I did some listening tests, both with good headphones and through my stereo, and that is the point where I felt like I wasn't missing too much in terms of the highs and the details, but was also getting a good return in terms of file sizes that 250 + gb fits on my 60 gb ipod with a little room left for episodes of Battlestar Galactica, for when I'm on a plane here or there).
To me, playing music through a somewhat good stereo system, I prefer to have it be as clean as possible... lossless files and a digital/optical input to the stereo... that gives me better sound than my older set up with the CD players hooked up through RCA cables, and like I said, I feel like the cost of hard drives is cheap enough that having songs be around 30 mb each isn't a big deal. If you feel like you can't afford that hard drive space, and dont' want to purchase an external, then I recommend just taking a couple of your favorite songs, converting them at a few different bit rates, and deciding where the right trade off is for you. I expect that pretty much everyone is going to have different feelings about that...
Good luck!
Stephen
#3
Posted 13 May 2008 - 05:43 AM
I actually own a 1TB external has it is. I use it to back up all my work files as well as ripping my DVDs so I have them as digital copies. However I quickly start to run out of space... Later this year I'm planning on upgrading to a much bigger RAID system, one which can grow, but for now I am limited to some degree.
I took your advice and took the files and did some tests. I imported a song at Apple Lossless, AAC 320kb/s CBR and AAC 256kb/s VBR then opened each in Quicktime so I could switch back and forth to each one to see if there was a quality difference. I couldn't notice one. So for now I think I'm going with 256.
Once HD-AAC gets supported in iTunes 8 I'll probably have to rethink my strategy.
I took your advice and took the files and did some tests. I imported a song at Apple Lossless, AAC 320kb/s CBR and AAC 256kb/s VBR then opened each in Quicktime so I could switch back and forth to each one to see if there was a quality difference. I couldn't notice one. So for now I think I'm going with 256.
Once HD-AAC gets supported in iTunes 8 I'll probably have to rethink my strategy.
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