摘要：The increased intimidation in pilfering copyrighted multimedia files demands the imprint of ownership identity called fingerprint in video/audio files. This would aid to indentify and accuse the imitators. Several hiding methods using image, audio, video or text as cover media have been found in literature with software based implementations like MATLAB. Some of these have also been reported in hardware platforms like FPGAs. As a trade-off between these implementations, embedded devices such as ARM core were used for image steganography on gray images to embed less payload in an attempt to abide the resource constrains on embedded devices. This study suggests an indicator based random LSB coding method that embeds fingerprint on a WAV audio file. The implementation was carried out on an embedded device LPC2148 with ARM7 core housed on MCB2140 evaluation board that supports audio play through on board amplifier and speaker. The original and embedded audio signal in their digitized form resides in FLASH and SRAM on-chip memories of LPC2148.
