An Effective Watermarking Method Based on Energy Averaging in Audio Signals

Table 1

The effects of the subsegments length of averaging DCT coefficients to increase the robustness. (pop music).

L	SNR	Time (sec)	BER after MP3 compression
1	47.32	0.12	0.43
5	38.76	0.88	0.38
10	36.79	2.14	0.35
20	36.72	5.87	0.31
30	34.98	9.98	0.27
40	35.79	13.30	0.24
50	35.67	18.29	0.21
100	33.34	32.85	0.20
150	30.27	59.93	0.20