320-->256 = Lossy?

Discussion in 'iPod' started by johnjeffrey, Oct 7, 2006.

  1. johnjeffrey macrumors member

    Joined:
    May 17, 2006
    #1
    Hey there if I convert my 320 aac files into 256 aac files, will there be loss of quality involved, aside that from the obvious?

    I know that when you encode say 256 into 320, it does not actually increase the quality of the music--just wondering about the opposite.
     
  2. Blue Velvet Moderator emeritus

    Joined:
    Jul 4, 2004
    #2
    Yes, there will be some quality loss but whether or not it's noticeable is debatable; this particularly depends on your playback equipment.

    If you're looking for huge space-savings you may be disappointed unless you have many 10's of gigabytes of music
     
  3. spicyapple macrumors 68000

    spicyapple

    Joined:
    Jul 20, 2006
    #3
    I'd go out on a limb and say you won't notice a big decrease in quality, since you're downsampling, but why go from 320 to 256? It makes more sense to keep your original at 320 and create a 128 for space savings, with only a slight decrease in quality.
     
  4. johnjeffrey thread starter macrumors member

    Joined:
    May 17, 2006
    #4
    Interesting idea spicyapple..so your saying that if i convert my 320 files to 128's that there would be no difference than if I converted a lossless file to 128?

    for example, if i rerip a cd at 128aac it would be the same quality as if i just convert my 320aac album to a 128aac?

    also good idea about keeping the 320's on an external or something as a backup for when they do come out with an even-larger capacity ipod and using the 128's for now.
     
  5. Hoef macrumors 6502a

    Hoef

    Joined:
    Jul 11, 2004
    Location:
    Houston, TX..... (keep walking)
    #5
    how about 320 aac back to compact disc (compared to the orginal CD ....) probably some quality loss, but not much (I hope). Any thoughts?
     
  6. johnjeffrey thread starter macrumors member

    Joined:
    May 17, 2006
    #6
    Wait so 'downgrading' from 320 to 128 is not a terrible idea? Would the 128aac tracks come out the same as if they were imported straight from itunes originally?

    i only ask because i know encoding from 128-->320 would be a disaster
     
  7. Bill Gates macrumors 68020

    Bill Gates

    Joined:
    Jun 21, 2006
    Location:
    127.0.0.1
    #7
    320kbit/sec is lossy enough to begin with. Why decrease it further?
     
  8. johnjeffrey thread starter macrumors member

    Joined:
    May 17, 2006
    #8
    okay but compression-whining aside--what's the answer?
     

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