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Thread: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

  1. #1

    Join Date
    Sep 2010
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    19

    Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    Here is the CoreConverter command line I am using besides the -input, -output, and -convert_to options:

    -dspeffect1="-resample=-frequency={qt}48000{qt}"

    And all I get is a 40 byte file with the mp4 extension. What am I doing wrong here? I have tried with and without {qt}

    Does the sequence of switches make any difference? I have convert_to option specified before the -dspeffect1 option. Is that ok?

    Cheers. -aamitabh

  2. #2
    Administrator
    Join Date
    Apr 2002
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    Re: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    If you remove the dspeffect line it works?

  3. #3

    Join Date
    Sep 2010
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    19

    Re: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    yes. All I have on the command line is -input ... -output.. -convert_to="Apple Lossless" -dspeffect...

  4. #4
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    Re: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    -dspeffect1="Resample=-frequency={qt}48000{qt}"

    Is correct not -resample

  5. #5

    Join Date
    Sep 2010
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    19

    Re: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    Awesome! work like a charm.
    While the library conversion was going on I just realized that I have a mix of 88.2KHz and 96KHz music. What I would like to do is based on the input file sampling rate reduce the sampling rate from 88.2->44.1KHz and 96->48KHz. Can I do that?

    Cheers. -aamitabh

  6. #6
    Administrator
    Join Date
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    Re: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    You would have to programatically search for the different bitrates.

  7. #7

    Join Date
    Sep 2010
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    19

    Re: Downsample WMA/FLAC Lossless to Apple Lossless from 96 to 48 KHz

    Ok thanks! that was precise enough. There goes my weekend.

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