Research Article
Semifragile Speech Watermarking Based on Least Significant Bit Replacement of Line Spectral Frequencies
Table 1
Comparison of different semifragile watermarking techniques in terms of their time, BER, SNR, and capacity.
| Watermark techniques | BER (%) | Speech SNR (dB) | Capacity (bps) | Total time (s)
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| Semifragile LSF-LSBR | 0.5032 | 47.32 | 33.33–50 | 321 | DWPT-QIM [9] | 0.4367 | 43.39 | 31.25–1000 | 232 | AbS [3] | 0.4780 | 28.08 | 33.33–50 | 309 | LSF [7, 10] | 0.5127 | 30.32 | 33.33–50 | 298 | DT-CWT [11] | 0.1367 | 31.36 | 15.66–976.56 | 351 | Genetic algorithm [12] | 0.4513 | 29.30 | N/A | 411 |
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