A Steganography Method for G.729a Speech Coding

Fufang Li, Binbin Li, Liangchen Liu, Yuanyong Feng, Lingxi Peng

Table 5 The degradation of average PESQ scores before and after steganography is conducted

Experiment condition boy voice girl voice male singing female singing Chinese music western music average No confidential information embedded 2.841425 2.962733 3.287391 2.910467 2.876323 2.917364 2.965951 Experiment scenario (1) 2.679748 2.807782 3.112173 2.757085 2.724453 2.769454 2.808447 94.31% 94.77% 94.67% 94.73% 94.72% 94.93% 94.69% Experiment scenario (2) 2.600756 2.724529 3.016839 2.686652 2.648231 2.700604 2.729602 91.53% 91.96% 91.77% 92.31% 92.07% 92.57% 92.04% Experiment scenario (3) 2.598483 2.719493 3.028673 2.687234 2.649956 2.699437 2.730546 91.45% 91.79% 92.13% 92.33% 92.13% 92.53% 92.06% Experiment scenario (4) 2.341050 2.453439 2.743985 2.466621 2.414961 2.463714 2.480628 82.39% 82.81% 83.47% 84.75% 83.96% 84.45% 83.64% Experiment scenario (5) 2.141582 2.250492 2.453051 2.180813 2.149189 2.212237 2.231227 75.37% 75.96% 74.62% 74.93% 74.72% 75.83% 75.24%