Research Article
Commutative Watermarking-Encryption of Audio Data with Minimum Knowledge Verification
Table 2
Bit error rates of extracted 56 bit watermarks after various StirMark attacks on seven example audio files. Parameters used are
,
,
,
,
, and
.
| Index | Angriff + parameter | Tenor singing | Female speech | Guitar | Soloists (Verdi) | Choir (Orff) | Abba | Eddie Rabbit |
| 0 | AddDynNoise-20 | 0.304 | 0.339 | 0.357 | 0.411 | 0.375 | 0.411 | 0.411 | 1 | AddNoise-10 | 0.018 | 0.0 | 0.054 | 0.0 | 0.0 | 0.036 | 0.018 | 2 | AddNoise-1000 | 0.339 | 0.357 | 0.464 | 0.357 | 0.375 | 0.5 | 0.429 | 3 | AddSinus-120-3000 | 0.286 | 0.357 | 0.411 | 0.429 | 0.357 | 0.411 | 0.357 | 4 | Amplify-50 | 0.304 | 0.339 | 0.411 | 0.411 | 0.411 | 0.429 | 0.446 | 5 | BassBoost-150-6.123 | 0.286 | 0.375 | 0.375 | 0.446 | 0.357 | 0.429 | 0.446 | 6 | BitChanger-1-99.99 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7 | Compressor-6.123-2.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8 | CopySample-10000-2000-6000 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9 | CutSamples-100-7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 10 | Echo-50 | 0.321 | 0.375 | 0.411 | 0.446 | 0.411 | 0.446 | 0.446 | 11 | Exchange | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 12 | FFT_HLPassQuick-1024-150-15000 | 0.286 | 0.339 | 0.357 | 0.393 | 0.375 | 0.375 | 0.429 | 13 | FFT_Invert-1024 | 0.286 | 0.357 | 0.357 | 0.411 | 0.375 | 0.429 | 0.393 | 14 | FFT_RealReverse-1024 | 0.321 | 0.375 | 0.393 | 0.446 | 0.411 | 0.446 | 0.464 | 15 | FlippSample-10000-2000-6000 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 16 | Invert | 0.268 | 0.339 | 0.375 | 0.429 | 0.375 | 0.393 | 0.411 | 17 | LSBZero | 0.0 | 0.036 | 0.161 | 0.143 | 0.0 | 0.161 | 0.143 | 18 | Normalizer1-2048-28000 | 0.25 | 0.393 | 0.339 | 0.304 | 0.339 | 0.339 | 0.304 | 19 | RC_LowPass-9000 | 0.214 | 0.393 | 0.339 | 0.375 | 0.411 | 0.393 | 0.214 | 20 | ReplaceSamples-525-1.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 21 | Smooth | 0.232 | 0.321 | 0.321 | 0.429 | 0.393 | 0.429 | 0.25 | 22 | Smooth2 | 0.143 | 0.107 | 0.161 | 0.089 | 0.036 | 0.125 | 0.089 | 23 | Stat1 | 0.25 | 0.357 | 0.357 | 0.393 | 0.393 | 0.429 | 0.214 | 24 | ZeroCross-1000 | 0.304 | 0.125 | 0.375 | 0.321 | 0.107 | 0.286 | 0.161 | 25 | ZeroLength-10 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 26 | ZeroRemove | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
|
|