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Thread: FDK m4a (AAC) Encoder R3

  1. #1
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    FDK m4a (AAC) Encoder R3

    This update adds Variable Bitrate Encoding.

    Download:

    http://www.dbpoweramp.com/beta/dBpow...%20Encoder.exe

    1.9MB

  2. #2

    Join Date
    Sep 2014
    Posts
    6

    Re: FDK m4a (AAC) Encoder R3

    Thank you very much for this!!!

    I just installed this. While the "Configure dBpoweramp/Codecs tab" says I'm running "Release 3 (FDK v0.1.3)", the UI hasn't changed from Release 2.

    Here is the contents of c:\Program Files\Illustrate\dBpoweramp\encoder\m4a FDK (AAC)\encoder. I don't see any "-m" in there anywhere...:

    Code:
    [codec]
    .m4a
    fdkaac.exe
    
    [slider]
    4
    24
    292
    16
    Bit Rate: 8 kbps
    -b 8
    Bit Rate: 12 kbps
    -b 12000
    Bit Rate: 16 kbps
    -b 16000
    Bit Rate: 24 kbps
    -b 24000
    Bit Rate: 32 kbps
    -b 32000
    Bit Rate: 48 kbps
    -b 48000
    Bit Rate: 56 kbps
    -b 56000
    Bit Rate: 64 kbps
    -b 64000
    Bit Rate: 80 kbps
    -b 80000
    Bit Rate: 96 kbps
    -b 96000
    Bit Rate: 128 kbps
    -b 128000
    Bit Rate: 144 kbps
    -b 144000
    Bit Rate: 160 kbps
    -b 160000
    Bit Rate: 192 kbps
    -b 192000
    Bit Rate: 224 kbps
    -b 224000 -w 22050
    Bit Rate: 256 kbps
    -b 256000 -w 22050
    Bit Rate: 320 kbps
    -b 320000 -w 22050
    Bit Rate: 400 kbps
    -b 400000 -w 22050
    Bit Rate: 480 kbps
    -b 480000 -w 22050
    Bit Rate: 512 kbps
    -b 512000 -w 22050
    
    
    [label]
    10
    44
    low quality (smaller file)
    808080
    
    [label]
    216
    44
    high quality (larger file)
    808080
    
    [combo]
    60
    66
    120
    1
    LC AAC
     -p 2
    HE AAC (below 96 kbps)
     -p 5  
    HE v2 AAC (below 56 kbps)
     -p 29  
    
    
    
    [clistring]
     --ignorelength -S -o "[outfile]" - 
    
    [highestqualitydecode]
    
    
    [minfreq]
    8000
    
    [maxfreq]
    96000
    
    [maxchannels]
    6
    
    [helpbutton]
    283
    0
    Help\Codec\m4a FDK (AAC)\Help.htm
    
    [estimatesize]
    -b 512000
    512000
    -b 480000
    480000
    -b 400000
    400000
    -b 320000
    320000
    -b 256000
    256000
    -b 224000
    224000
    -b 192000
    192000
    -b 160000
    160000
    -b 144000
    144000
    -b 128000
    128000
    -b 96000
    96000
    -b 80000
    80000
    -b 64000
    64000
    -b 56000
    56000
    -b 48000
    48000
    -b 32000
    32000
    -b 24000
    24000
    -b 16000
    16000
    -b 12000
    12000
    -b 8000
    8000

  3. #3
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    Re: FDK m4a (AAC) Encoder R3

    Install reissued.

  4. #4

    Join Date
    Sep 2014
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    6

    Re: FDK m4a (AAC) Encoder R3

    Yes!!!

    VBR option now available! Thanks again for doing this!

  5. #5

    Join Date
    Dec 2013
    Location
    Wisconsin
    Posts
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    Re: FDK m4a (AAC) Encoder R3

    Hello Spoon,

    I just wanted to stop by to say thank you for the variable bitrate option. I was hoping for this as it will save me some space on my microSD card as opposed to using 256kbps CBR.

    I was also curious why the VBR option only allows for up to 224kbps? How come there is no 256kbps or 320kbps option? Not that I would likely need to use these as I can't tell a difference, but just wondering why they were left out. Maybe that could be the reason, "no one needs it," but just wanted to ask.

    Thank you,

    -hogger129
    Last edited by hogger129; 10-04-2014 at 09:03 AM.

  6. #6
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    Re: FDK m4a (AAC) Encoder R3

    I am not sure, those values do not exist in the encoder.

  7. #7

    Join Date
    Sep 2014
    Posts
    6

    Re: FDK m4a (AAC) Encoder R3

    The bit rate of files encoded by FDK-AAC in VBR ("-m5") mode is significantly less than using something like "afconvert -u vbrq 127...".

    But that doesn't necessarily mean they don't sound as good or better. I would encourage anyone interested to encode for themselves and compare to other AAC encoders. For me, the jury is still out on FDK-AAC, but the files sound pretty good for their size!

  8. #8

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    Wisconsin
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    Re: FDK m4a (AAC) Encoder R3

    Quote Originally Posted by phm View Post
    The bit rate of files encoded by FDK-AAC in VBR ("-m5") mode is significantly less than using something like "afconvert -u vbrq 127...".

    But that doesn't necessarily mean they don't sound as good or better. I would encourage anyone interested to encode for themselves and compare to other AAC encoders. For me, the jury is still out on FDK-AAC, but the files sound pretty good for their size!
    Same here. I encoded some files to FDK-AAC at VBR 224kbps and thought they sounded pretty good on my Fiio X1.

  9. #9

    Join Date
    Apr 2011
    Posts
    19

    Re: FDK m4a (AAC) Encoder R3

    Quote Originally Posted by hogger129 View Post
    I was also curious why the VBR option only allows for up to 224kbps? How come there is no 256kbps or 320kbps option? Not that I would likely need to use these as I can't tell a difference, but just wondering why they were left out. Maybe that could be the reason, "no one needs it," but just wanted to ask.

    Thank you,

    -hogger129
    The VBR mode, as implemented in the FDK library is a "True VBR" one, i.e. not restricted or constrained by bitrates. That slider is a quality setting, and VBR allows 5 qualities (from low to high if you will). The bitrates are simply average estimates to what is generally expected by that quality level to produce. In theory, the highest quality setting could produce files with higher overall bitrates than 192 kbps (which is the actual average for quality 5), if actually needed.

  10. #10
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    Apr 2002
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    Re: FDK m4a (AAC) Encoder R3

    Now released.

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