Table 5.
Descriptive statistics (means and standard deviations) for the NH participants' phoneme identification scores in each vocoder condition. Data are presented in terms of percent correct.
| Phoneme Identification (in percent correct) M (SD) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| 15 dB/octave slope | 30 dB/octave slope | 60 dB/octave slope | |||||||
|
|
|
|
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| Channels | Channels | Channels | |||||||
| 8 | 12 | 15 | 8 | 12 | 15 | 8 | 12 | 15 | |
|
|
|
|
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| Vowels | |||||||||
| Adults | 64.49 (11.57) | 72.86 (12.61) | 70.14 (12.55) | 81.65 (6.88) | 88.33 (7.61) | 87.68 (9.13) | 81.54 (10.10) | 90.29 (8.22) | 91.00 (6.23) |
| Children (13-17 yrs) | -- | 79.04 (8.61) | 83.31 (7.00) | 83.73 (7.18) | 80.58 (6.78) | 89.77 (5.96) | 90.50 (6.21) | ||
| Children (8-12 yrs) | 66.67 (10.89) | 69.46 (10.96) | 68.61 (9.23) | 70.70 (8.79) | 75.54 (10.04) | 77.11 (9.65) | |||
| Consonants | |||||||||
| Adults | 72.47 (12.79) | 73.53 (10.72) | 73.49 (12.49) | 85.83 (6.40) | 88.22 (5.85) | 88.69 (6.18) | 91.78 (3.89) | 92.39 (4.77) | 94.11 (4.60) |
| Children (13-17 yrs) | -- | 80.42 (6.47) | 80.88 (5.85) | 81.21 (6.06) | 87.00 (5.16) | 88.67 (4.58) | 90.04 (5.37) | ||
| Children (8-12 yrs) | 68.24 (11.80) | 69.44 (9.34) | 70.15 (10.74) | 77.59 (10.66) | 77.41 (11.08) | 77.22 (10.25) | |||