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Software License for The Fraunhofer FDK AAC Codec Library for Android
1. INTRODUCTION
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. This FDK
AAC Codec software is intended to be used on a wide variety of Android devices.
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part of
the MPEG specifications.
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent
owners individually for the purpose of encoding or decoding bit streams in products that are
compliant with the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android
devices already license these patent claims through Via Licensing or directly from the patent owners,
and therefore FDK AAC Codec software may already be covered under those patent licenses when it
is used for those licensed purposes only.
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound
quality, are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for
additional applications information and documentation.
2. COPYRIGHT LICENSE
Redistribution and use in source and binary forms, with or without modification, are permitted
without payment of copyright license fees provided that you satisfy the following conditions:
You must retain the complete text of this software license in redistributions of the FDK AAC Codec
or your modifications thereto in source code form.
You must retain the complete text of this software license in the documentation and/or other
materials provided with redistributions of the FDK AAC Codec or your modifications thereto in binary
form. You must make available free of charge copies of the complete source code of the FDK AAC
Codec and your modifications thereto to recipients of copies in binary form.
