Itunes, bitrate, and other questions...
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Joined: Jan 2004
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shareholder in the making
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OK, so I started using Itunes recently. Yes, I know...get with the 2000's Randy, lol.
Anyway, I am planning on buying an external storage drive to store my CD's, Vinyl, etc. If I use a higher bitrate or lossless format for my local Itunes copies for the best quality when playing over my M80's, can I synch easily to a portable device (Ipod, mp3 players) in a lower bitrate to save space on the device? I see where I can experiment with various encoders and bitrates in Itunes, but can't see where the import bitrate setting would be different than what I put on a portable player.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Itunes, bitrate, and other questions...
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Joined: Aug 2007
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connoisseur
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connoisseur
Joined: Aug 2007
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One way is: 1. Import first in lossless. 2. Change the import settings for a lower bitrates. 3. Right-click on your songs and select "create MP3 version" (or whatever the format you choose). 4. Itunes will create a copy. 5. Rename the album of the new tracks from "Regina Specktor" to "Regina Specktor (ipod)" 6. Create a "smart playlist" called iPod for all "albums" contains "(ipod)" 7. Select "manualy sync" when syncing your iPod and select the "iPod" playlist.
This sounds like a lot of work, but it is actually not that bad and you do it only once.
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Re: Itunes, bitrate, and other questions...
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Joined: Jan 2004
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shareholder in the making
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That does not sound to bad Eric, so by doing this I will have two copies on my hard drive, one lossless (or higher bitrate) and one at the lower bitrate that I synched to the Ipod?
Or, is there some way when you make a copy to have it copy to the IPOD, or can you drag/drop? Just looking for options.
I was thinking about using MP3 320 CBR for my main copies, as from what I have read in blind tests, most people can't tell the difference between anything above 256 and CD quality.
For the Ipod copy I would probably use 128kps VBR
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Itunes, bitrate, and other questions...
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Joined: May 2002
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axiomite
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axiomite
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Is lossless "really" lossless?
Just a general question. I've had some discussions with some rather brilliant computer engineers and programmers (you know, the kind of guys who learned how to build circuit boards at the age of 12) simply stating 'any compression format can be assumed to induce errors by its very nature of how they compress data'.
"Those who preach the myths of audio are ignorant of truth."
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Re: Itunes, bitrate, and other questions...
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Joined: Apr 2003
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shareholder in the making
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shareholder in the making
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if the original waveform can be reconstructed, then it's lossless. I've never seen an error analysis for any lossless format, though.
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Re: Itunes, bitrate, and other questions...
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Founder, Axiom Upgrade Club shareholder in the making
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Founder, Axiom Upgrade Club shareholder in the making
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5. Rename the album of the new tracks from "Regina Specktor" to "Regina Specktor (ipod)" CV bait.
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Re: Itunes, bitrate, and other questions...
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Joined: Feb 2009
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connoisseur
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connoisseur
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Just a general question. I've had some discussions with some rather brilliant computer engineers and programmers (you know, the kind of guys who learned how to build circuit boards at the age of 12) simply stating 'any compression format can be assumed to induce errors by its very nature of how they compress data'. I don't know what those guys were doing, but at 16 I was designing lossless packing algorithms for 2D graphics. I know for a fact that RLE (run length encoding) and dictionary pattern matching are lossless. They are also blindingly obvious, and a 16 year old could come up with them on his own. Lossless audio is somewhat more complex, but I still have no doubt that it can be done without introducing error. One of the usual methods is to write an prediction algorithm which tries to guess what value will come next based upon previous. If it's right, then nothing needs to be stored. If it's wrong, then the difference between the predicted value and the actual value is stored. The error is the data. Properly implemented, there are many ways to reduce the redundancy in data, that when undone presents an exact copy of the original. One thing, in packed form damage to the data will be more extensive when unpacked. But that's not a failure of the compression, but of the transmission/storage medium. And why we have error checking and correcting.
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
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Re: Itunes, bitrate, and other questions...
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Joined: Aug 2007
Posts: 3,488 Likes: 9
connoisseur
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connoisseur
Joined: Aug 2007
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They were talking about lossy encoding. 'by its very nature' zipping remains zipping while 'by its very nature' jpg/mp3 loses data. How much data did you loose so far with zipped files? If any, it was the result of hard drive failures, not the unzipping process.
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Re: Itunes, bitrate, and other questions...
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Joined: Jan 2004
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shareholder in the making
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Any other input on my questions.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Itunes, bitrate, and other questions...
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
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Eric's method is what you're going to have to work with. If (and unfortunately only if) you're syncing songs to an iPod Shuffle, then iTunes offers an option to convert songs to 128 kbps AAC on-the-fly.
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