[Cyberdrive]

Тут пролетела (относительно) новая версия at9tool с исходным кодом: http://pastebin.com/rVuYqzLE
Прикладываю.

at9tool.exe

SCEI ATRAC9 TOOL Version 1.6.0.0
SCE CONFIDENTIAL
Copyright(C) 2012 Sony Computer Entertainment Inc. All Rights Reserved.
Copyright 2009, 2010, 2011 Sony Corporation
        *** built w/ ATRAC9 library version 1.00.06 ***
Usage : at9tool [-<option>] file1 file2
  -e : encode file1 to file2
       (file 1:16bit/8,12,16,24,32,44.1,48kHz linear PCM wav file)
below options only affects to encoding mode(when not, they will be ignored)
  -br N: specify the bitrate Nkbps
  -fs N: Number of sampling rate[Hz] (12000,24000,48000(default 48000))
       (-fs 12000:The sampling rate of the input file is only 12kHz)
       (-fs 24000:The sampling rate of the input file is only 24kHz)
  -loop S E: specify the loop start point is S samples from the beginning
             specify the loop end   point is E samples from the beginning
             S and E must satisfy under condition
             (-fs:12000Hz)
             0 <= S < S + 3071 <= E < number of samples in file1(12000Hz PCM)
             (-fs:24000Hz)
             0 <= S < S + 3071 <= E < number of samples in file1(24000Hz PCM)
             (-fs:48000Hz)
             0 <= S < S +  511 <= E < number of samples in file1( 8000Hz PCM)
             0 <= S < S +  767 <= E < number of samples in file1(12000Hz PCM)
             0 <= S < S + 1023 <= E < number of samples in file1(16000Hz PCM)
             0 <= S < S + 1535 <= E < number of samples in file1(24000Hz PCM)
             0 <= S < S + 2047 <= E < number of samples in file1(32000Hz PCM)
             0 <= S < S + 2821 <= E < number of samples in file1(44100Hz PCM)
             0 <= S < S + 3071 <= E < number of samples in file1(48000Hz PCM)
  -wholeloop: set the whole loop
  -looplist filename: set the multiple loops by the text file of the list of loop options
                      at9tool lists the loop option up to 2 loops
following options are encode detail options
  -supframeon : set superframe encode
  -supframeoff: don't set superframe encode
  -dual       : use dual encode mode
  -nbands N   : Number of quantized bands
                (-fs:12000Hz) [3,..,8]
                (-fs:24000Hz) [3,..,12]
                (-fs:48000Hz) [3,..,18]
  -isband N   : Intensity start band [-1, 3,..,nbands]
  -gradmode N : Encoding mode  [0,1,2,3, and 4]
                0-3: gradient of the quantization noise.
                4  : 0-3 is selected automatically.
                Specify the small number in case of tone sound source.
                Or specify the high number in case of noisy sound source.
  -d : decode to file1 to file2(16bit linear PCM wav file)
below options only affects to decoding mode(when not, they will be ignored)
  -repeat N: repeating LOOP part N times(default 2, N > 0)