Weeks after voice modification | 35 | 50 | 23 | 28 |
Spectral | | | | |
First phrase (kHz) | | | | |
Native start | 8.642 (0.186) | 7.126 (0.186) | 8.298 (0.116) | 7.74 (0.242) |
Altered start | 1.321 (0.126) | 4.958 (0.233) | 5.423 (0.140) | 4.363 (0.130) |
p value | * | * | * | * |
Native end | 14.512 (0.135) | 12.819 (0.209) | 12.549 (0.153) | 13.386 (0.321) |
Altered end | 2.177 (0.135) | 9.172 (0.428) | 8.047 (0.093) | 7.563 (0.060) |
p value | * | * | * | * |
Middle phrase (kHz) | | | | |
Native start | 5.553 (0.130) | 4.735 (0.177) | 5.479 (0.060) | 4.298 (0.112) |
Altered start | 1.07 (0.130) | 2.381 (0.116) | 3.842 (0.056) | 2.251 (0.070) |
p value | * | * | * | * |
Native end | 13.405 (0.163) | 12.353 (0.228) | 10.828 (0.051) | 12.884 (0.293) |
Altered end | 1.777 (0.144) | 8.112 (0.391) | 7.219 (0.060) | 5.786 (0.042) |
p value | * | * | * | * |
Last phrase (kHz) | | | | |
Native start | 5.712 (0.121) | 4.735 (0.107) | 5.46 (0.070) | 5.191 (0.130) |
Altered start | 0.967 (0.098) | 3.367 (0.223) | 4.009 (0.074) | 3.423 (0.112) |
p value | * | * | * | * |
Native end | 9.749 (0.200) | 8.614 (0.177) | 7.842 (0.065) | 9.07 (0.237) |
Altered end | 1.609 (0.098) | 6.493 (0.321) | 6.047 (0.558) | 5.47 (0.074) |
p value | * | * | * | * |
Temporal | | | | |
Mid interphrase interval (s) | | | | |
Native end | 0.130 (0.020) | 0.129 (0.017) | 0.112 (0.031) | 0.130 (0.020) |
Altered end | 0.119 (0.003) | 0.131 (0.032) | 0.122 (0.012) | 0.133 (0.003) |
p value | * | 0.72 | 0.07 | 0.42 |
Number of phrases (count) | | | | |
Native end | 8.404 (1.296) | 10.207 (1.362) | 8.066 (1.347) | 10.272 (1.953) |
Altered end | 6.554 (1.559) | 13.371 (1.362) | 8.244 (1.080) | 12.000 (1.789) |
p value | * | * | 0.44 | * |
Total call duration (s) | | | | |
Native end | 1.030 (0.185) | 1.228 (0.192) | 0.879 (0.167) | 1.257 (0.257) |
Altered end | 0.863 (0.248) | 1.729 (0.320) | 0.940 (0.152) | 1.484 (0.236) |
p value | * | * | 0.05 | * |