Table 7.
Mean difference in phoneme identification scores (in percent correct) between filter slope conditions for 8, 12 and 15 channels. Statistically significant differences are indicated by bold font.
| Difference (in percent correct) | ||||||
|---|---|---|---|---|---|---|
|
| ||||||
| 30 dB/octave slope – 15 dB/octave slope | 60 dB/octave slope – 30 dB/octave slope | |||||
|
|
|
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| Channels | Channels | |||||
| 8 | 12 | 15 | 8 | 12 | 15 | |
|
|
|
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| Vowels | ||||||
| Adults | 17.17 | 15.47 | 17.54 | -0.11 | 1.96 | 3.32 |
| Children (13-17 yrs) | -- | 1.54 | 6.46 | 6.77 | ||
| Children (8-12 yrs) | 4.04 | 6.07 | 8.50 | |||
| Consonants | ||||||
| Adults | 13.36 | 14.69 | 15.21 | 5.95 | 4.17 | 5.42 |
| Children (13-17 yrs) | -- | 6.58 | 7.79 | 8.83 | ||
| Children (8-12 yrs) | 9.31 | 8.52 | 5.79 | |||