Itunes experts

nduitch
nduitch Posts: 316
edited June 2010 in 2 Channel Audio
While ripping Cds in Apple Loseless format, I am getting different bit rates from cd to cd. Some are 1000kbs or so and some are 600-800kbs. Anyone know why?
Post edited by nduitch on

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  • LessisNevermore
    LessisNevermore Posts: 1,519
    edited June 2010
    nduitch wrote: »
    While ripping Cds in Apple Loseless format, I am getting different bit rates from cd to cd. Some are 1000kbs or so and some are 600-800kbs. Anyone know why?


    Are you referring to the ripped file?
    Sorry, I don't have the answer to that, but if it puts you at ease, I noticed that Media Monkey does the same thing with FLAC files.
  • nduitch
    nduitch Posts: 316
    edited June 2010
    Yeah I'm talking about ripped files. Maybe all cds are not created with equal resolutions? I read on Wiki that a CD should be 1400kbs.
  • dane_peterson
    dane_peterson Posts: 1,903
    edited June 2010
    It varies from disc to disc based on how it was written... 600-1000kbs will be the typical range.
  • LessisNevermore
    LessisNevermore Posts: 1,519
    edited June 2010
    nduitch wrote: »
    Yeah I'm talking about ripped files. Maybe all cds are not created with equal resolutions? I read on Wiki that a CD should be 1400kbs.

    Not to worry, the CD is the full bitrate. It's the (in your case) ALAC files that are being truncated to appear at less than CD quality.

    I have not been able to distinguish between FLAC and CD, not once. Don't sweat it.
  • Cpyder
    Cpyder Posts: 514
    edited June 2010
    nduitch wrote: »
    While ripping Cds in Apple Loseless format, I am getting different bit rates from cd to cd. Some are 1000kbs or so and some are 600-800kbs. Anyone know why?

    Because ALAC uses compression. Not the same type of compression for MP3 or AAC - which is lossy. It uses a lossless compression algorithm. Each track can be compressed only so much using this algorithm. The more complex the data in the track, the less the compression.

    http://en.wikipedia.org/wiki/Apple_Lossless
    Not to worry, the CD is the full bitrate. It's the (in your case) ALAC files that are being truncated to appear at less than CD quality.

    I have not been able to distinguish between FLAC and CD, not once. Don't sweat it.

    And you never will. Both ALAC and FLAC are lossless formats. There's no difference between them or WAV. Every bit of audio is preserved in each format. Bit-for-bit identical when being played back.
  • LessisNevermore
    LessisNevermore Posts: 1,519
    edited June 2010
    Cpyder wrote: »
    And you never will. Both ALAC and FLAC are lossless formats. There's no difference between them or WAV. Every bit of audio is preserved in each format. Bit-for-bit identical when being played back.

    Preachin' to the choir, Reverend.;)
  • Lowell_M
    Lowell_M Posts: 1,660
    edited June 2010
    Amen Brotha! I've compared FLAC to ALAC to Redbook on my 2-ch and can't tell a difference in tripple super double secret blind ABX to the third power testing. (or something like that... don't sweat the bit rate)
    HT
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  • Cpyder
    Cpyder Posts: 514
    edited June 2010
    Lowell_M wrote: »
    Amen Brotha! I've compared FLAC to ALAC to Redbook on my 2-ch and can't tell a difference in tripple super double secret blind ABX to the third power testing. (or something like that... don't sweat the bit rate)

    Lol. That's a pretty blinded test! Good work!

    To the OP: When referring to lossless formats, bitrate does not correlate to sound quality like it does with lossy formats. The bitrate for lossless formats means absolutely nothing. No matter what it is, you've got all of the information of the original track. The smaller the better.*

    *Assuming your hardware can keep up with the on-the-fly decompression.**

    **It can.
  • nduitch
    nduitch Posts: 316
    edited June 2010
    Lowell_M wrote: »
    Amen Brotha! I've compared FLAC to ALAC to Redbook on my 2-ch and can't tell a difference in tripple super double secret blind ABX to the third power testing. (or something like that... don't sweat the bit rate)

    Thanks I feel better now!