From: Speech encryption using chaotic shift keying for secured speech communication
S.No | Speech file | Metric | Proposed system in % | Lima and Neto system [25] in % | ||||
---|---|---|---|---|---|---|---|---|
Max | Min | Avg. | Max | Min | Avg. | |||
1. | Audio1.wav | NSCR | 100 | 99.9982 | 99.9996 | 100 | 99.9967 | 99.9992 |
UACI | 33.4161 | 33.1197 | 33.3066 | 33.4091 | 33.1850 | 33.2924 | ||
2. | Audio2.wav | NSCR | 100 | 99.9999 | 99.9999 | 100 | 99.9973 | 99.9992 |
UACI | 33.3893 | 33.1520 | 33.2714 | 33.4743 | 33.1931 | 33.3012 | ||
3. | Audio3.wav | NSCR | 100 | 99.9998 | 99.9999 | 100 | 99.9961 | 99.9992 |
UACI | 33.3990 | 33.1681 | 33.2683 | 33.4770 | 33.1858 | 33.3570 | ||
4. | Audio4.wav | NSCR | 100 | 99.9997 | 99.9998 | 100 | 99.9967 | 99.9993 |
UACI | 33.4371 | 33.2192 | 33.3218 | 33.4367 | 33.2030 | 33.3196 |