  A synchronization code scheme based on moving average is proposed for robust
audio watermarking in the paper. Two proper positive integers are chosen to
compute the moving average sequence by sliding one sample every time. The
synchronization bits are embedded at crosses of the two moving average
sequences with the quantization index modulation. The experimental results show
that the proposed watermarking scheme maintains high audio quality and is
robust to common attacks such as additive white Gaussian noise, re-sampling,
low-pass filtering, random cropping, MP3 compression, jitter attack and time
scale modification. Simultaneously, the algorithm has high search efficiency
and low false alarm rate.
