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Transcoding FLAC to AAC-320/M4A

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  • dJe781

    • Dec 2009
    • 2

    Transcoding FLAC to AAC-320/M4A

    Hi,

    I'm currently trying to add support for AAC/M4A to this tool, and I ran into some trouble.
    The tool is properly encoding, but not at the expected bitrate.
    Thanks to ProcessMonitor, I noticed that the encoder was called with the default parameters. So I gave a try calling manually CoreConverter in order to take a look at what's really happening with these parameters. However, it still doesn't work, and I'm wondering if it's not coming from dBpoweramp.

    Here's the call to CoreConverter :
    Code:
    "C:\Program Files (x86)\Illustrate\dBpoweramp\coreconverter.exe" -infile="G:\dBpoweramp\Test\Joyless - Unlimited Hate\01 - Inherent Emptiness.flac" -outfile="G:\dBpoweramp\Test\Joyless - Unlimited Hate [AAC]\01 - Inherent Emptiness.m4a" -convert_to="m4a Nero (AAC)" -cbr 320000 -ignorelength
    And here's the call that CoreConverter makes to neroAacEnc.exe :
    Code:
    "C:\Program Files (x86)\Illustrate\dBpoweramp\encoder\m4a Nero (AAC)\neroAacEnc.exe" -q .45  -ignorelength -if - -of "G:\DBPOWE~1\Test\JOYLES~2\01-INH~1.M4A"
    Am I being misled or does the CoreConverter loose the parameter list ?

    As a side note, everything's working fine while I'm using the dB's Batch Converter.
    Here's the call that CoreConverter makes to neroAacEnc.exe while using the Batch Converter :
    Code:
    "C:\Program Files (x86)\Illustrate\dBpoweramp\encoder\m4a Nero (AAC)\neroAacEnc.exe" -cbr 320000 -ignorelength -if - -of "G:\DBPOWE~1\Test\JOYLES~2\01-INH~1.M4A"
    Thanks for your help.
    Last edited by dJe781; December 12, 2009, 12:39 AM.
  • Spoon
    Administrator
    • Apr 2002
    • 44509

    #2
    Re: Transcoding FLAC to AAC-320/M4A

    See:

    Certain Codecs (WMA, and compressed Wave) are difficult to setup as the settings are not guessable. Using CD Ripper it is possible to set the compression settings and read them back from the registry. Open CD Ripper, set the profile to default, set the encoder and settings as desired. Close CD Ripper then open regedit:
    Spoon
    www.dbpoweramp.com

    Comment

    • dJe781

      • Dec 2009
      • 2

      #3
      Re: Transcoding FLAC to AAC-320/M4A

      Well, here's the CodecCLI_m4a Nero (AAC) value :
      Code:
       -cli_encoder="C:\Program Files (x86)\Illustrate\dBpoweramp\encoder\m4a Nero (AAC)\neroAacEnc.exe" -cli_cmd="-cbr 320000 -ignorelength -if - -of {qt}[outfile]{qt}" -selection="2,14,0"
      Appart the selection thing that I don't understand, I guess that the rest of the command line looks pretty much like the one I used...

      Comment

      Working...

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