It is free LGPL implementation of ATRAC1, ATRAC3 encoders.
Building:
You need:
binary:
cd src
mkdir build
cd build
cmake ../
make
binary and tests:
cd test
cmake ../
make
Usage:
ATRAC1:
./atracdenc -e atrac1 -i ~/01.wav -o /tmp/01.aea
ATRAC3:
./atracdenc -e atrac3 -i ~/01.wav -o /tmp/01.oma
More information on the atracdenc man page
Limitations: