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What is the most transparent LOSSY compression which is compatible with UNrockboxed iPod

post #1 of 15
9/20/09 at 6:32pm
Thread Starter 
Basically just as the title says.........I want to put lossy files on my iPod but at the highest bit rate possible to ensure transparency....

Which sounds better a LAME 320 mp3 or iTunes encoded 320 AAC?
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post #2 of 15
9/20/09 at 6:50pm
You should test for yourself and see if you detect any difference. For most circumstance, both should be transparent.
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post #3 of 15
9/20/09 at 6:53pm
Dont think the human auditory system can detect any difference between those.
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post #4 of 15
9/20/09 at 6:57pm
I prefer 320kps ogg over 320kps mp3.
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post #5 of 15
9/20/09 at 7:47pm
Thread Starter 
i'm deciding between 256 vbr and 320 aac.....i cant really tell a difference, should i go with 256 vbr?
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post #6 of 15
9/20/09 at 7:50pm
Why not try rockboxing your ipod? People have reported rockbox sounds better than stock firmware.
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post #7 of 15
9/20/09 at 8:35pm
If you can't tell the difference.. ( I rarely can tell between those eaither), then just use whatever gives the lower filesize - 256k VBR

I always use VBR, steady 320 Kbps is just wasteful over 320 VBR..

My touch (2g) has 256K VBR on it and sounds fine for work and the bus home with a pair of W3.
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post #8 of 15
9/20/09 at 9:02pm
Thread Starter 
Quote:
Originally Posted by iriverdude View Post
Why not try rockboxing your ipod? People have reported rockbox sounds better than stock firmware.
I've used rockbox in the past, but it's often buggy and considerably slower than the stock firmware.....but aside from all that I really like the ipod interface, I think that's largely what makes the ipod so good, their simple to the point interface......

If rockbox doesn't change anything inside the iPod how would it be possible that without EQ implementation that the sound quality of the rockboxed iPod sound any different than if it were not rockbox.......if this can be explained, I may try rockbox again, but I just don't see how it could differ....i may be wrong....I'd love to know
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post #9 of 15
9/20/09 at 9:52pm
CODEC
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post #10 of 15
9/20/09 at 11:31pm
I went with LAME MP3 -V0 VBR on my iPod Classic. One reason is that MP3 is more universally compatible and usable so my converted files are more useful on more devices. The other reason is that I use J. River Media Center and it doesn't have built-in support for AAC. So my decision was easy based on the tools I prefer to use.

If you're doing the conversion in iTunes I'd go with AAC. iTunes does AAC better than it does MP3.

Both LAME MP3 and AAC should be gapless on the iPod.
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post #11 of 15
9/21/09 at 12:04am
Nero AAC .95 setting! I cant detect any difference in abx test against flac. Of course the filesize might be a little larger than 320kbps though.
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post #12 of 15
9/21/09 at 12:06am
Oh to ensure transparency at all times just go with ALAC
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post #13 of 15
9/21/09 at 12:27pm
I suspect 320kbps AAC encoded with iTunes.
But what is transparent to me may not be transparent to you, so you may need to perform a listening test on your own to find the final result.
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post #14 of 15
9/21/09 at 12:40pm
i used to encode at 320 AAC, but now use 256 VBR AAC, because I honestly cannot tell the difference through my unamped Ety ER4P.
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post #15 of 15
9/21/09 at 1:02pm
The last rockbox versions are not buggy at all and work very well. In any case, use the lowest bitrate you like. In my 30 GB 5th gen I can dump more flac than I can listen in some time, so I don't bother with that anymore. Flac+rockbox and no more thinking about it.
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