illustrate
Products            Buy            Support Forum            Registrations            Professional            About           
 

FLAC -> Apple Lossless (24 bit jumps to 32 bit)

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ovollanno

    • Nov 2011
    • 9

    FLAC -> Apple Lossless (24 bit jumps to 32 bit)

    I am converting some hirez FLAC files to Apple Lossless for my iPod and am noticing that when I convert the files, they are going from 24 bit to 32 bit. Should that jump in bits per sample occur when converting? Thanks.
  • ovollanno

    • Nov 2011
    • 9

    #2
    Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

    Also... I know this is not the right forum, but did Apple ever build a checksum function into their lossless files?

    Comment

    • ovollanno

      • Nov 2011
      • 9

      #3
      Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

      I converted the Apple Lossless files back to FLAC and the 32-bit sampling when back to 24-bit. Sorry I am not a sound engineer. I am thinking nothing is being lost or added during conversion.

      Comment

      • Spoon
        Administrator
        • Apr 2002
        • 44669

        #4
        Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

        How are you knowing they are 32bit? if you right click on a file >> properties and 'Audio Properties' what does it say?
        Spoon
        www.dbpoweramp.com

        Comment

        • ovollanno

          • Nov 2011
          • 9

          #5
          Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

          Originally posted by Spoon
          How are you knowing they are 32bit? if you right click on a file >> properties and 'Audio Properties' what does it say?
          The file properties using dBpoweramp's popups say the converted files are 34. It's actually VLC that reports 32 bit.

          But a related issue also bothers me. I took a hirez FLAC and converted it to a WAV. then I took the FLAC and used dBpoweramo to convert it to a Lossless Apple file. then I took that Apple file and converted it to a WAV to compare it to the original FLAC->WAV file. There was a 4 byte difference. what would account for that variance?

          Thanks.

          Comment

          • ovollanno

            • Nov 2011
            • 9

            #6
            Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

            Meant to write...

            >>
            The file properties using dBpoweramp's popups say the converted files are 24. It's actually VLC that reports 32-bit.
            >>

            Comment

            • Spoon
              Administrator
              • Apr 2002
              • 44669

              #7
              Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

              VLC is wrong, dBpoweramp is right...

              4 bytes could be ID Tags or different header used, the audio will be the same (see codec central >> utility codec >> Calculate Audio CRC) and compare audio CRCs
              Spoon
              www.dbpoweramp.com

              Comment

              • ovollanno

                • Nov 2011
                • 9

                #8
                Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

                Originally posted by Spoon
                VLC is wrong, dBpoweramp is right...

                4 bytes could be ID Tags or different header used, the audio will be the same (see codec central >> utility codec >> Calculate Audio CRC) and compare audio CRCs
                Will do. Thanks.

                Comment

                • ovollanno

                  • Nov 2011
                  • 9

                  #9
                  Re: FLAC -> Apple Lossless (24 bit jumps to 32 bit)

                  Originally posted by ovollanno
                  Will do. Thanks.
                  Deep Purple et al thank you:

                  FLAC
                  810C9501D206DF5DF3B1D1F990C96AE8

                  WAV
                  810C9501D206DF5DF3B1D1F990C96AE8

                  M4A
                  810C9501D206DF5DF3B1D1F990C96AE8

                  Comment

                  Working...