An Effective Watermarking Method Based on Energy Averaging in Audio Signals

Table 6

Comparison between energy concept applying in time domain [5] and DCT domain.

Music Type	Symphonic music
Attack (BER)	Domain
	The work; (DCT domain)	Lie and Chang [5]; (Time domain)
No Attack	SNR: 41.47; BER: 0	SNR: 34.26; BER: 0.02
MP3 Compression (128 kbits/s)	0.05	0.29
MP3 Compression (64 kbits/s)	0.11	0.45
Low Pass Filter; (4KHz)	0.08	0.11
Time-Scaling; (Preserve Tempo)	0.14	0.46
Resampling; (44.1 kHz to 22.05 kHz)	0.08	0.12
Resampling; (44.1 kHz to 11.025 kHz)	0.11	0.22