Appendix 4.
Measures of Phoneme Identification. Normal-Hearing (NH) Data Averages and Ranges Are Shown (Averages for Consonant and Vowel Identification in Quiet Were Calculated in a RAU Scale).
| CI1R | CI2R | CI3L | CI3R | CI5R | CI6L | CI7R | CI9R | CI10L | CI10R | CI11L | CI11R | CI12L | CI13L | CI15L | CI18L | NH Avg. | NH Range |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vowel score (% correct) | |||||||||||||||||
| 86.3 | 88.1 | 27.5 | 50.0 | 66.3 | 80.6 | 86.3 | 40.6 | 86.7 | 82.5 | 66.9 | 29.4 | 61.3 | 65.6 | 48.1 | 90.0 | 89.2 | 86.3 to 91.9 |
| SRT for vowels in SSN (dB) | |||||||||||||||||
| −10.9 | −11.8 | ~ | 6.0 | −4.8 | −8.8 | −7.1 | −4.9 | 1.4 | −8.8 | −4.5 | ~ | −5.7 | −6.1 | ~ | −5.7 | −13.9 | −15.5 to 11.2 |
| SRT for vowels in gated SSN (dB) | |||||||||||||||||
| −17.5 | −20.9 | ~ | 9.6 | −3.9 | −16.1 | −14.9 | −4.0 | −6.5 | −15.7 | −4.1 | ~ | −9.6 | 2.8 | ~ | −27.8 | −38.6 | −51.7 to 25.7 |
| Vowel masking release (dB) | |||||||||||||||||
| 6.6 | 9.1 | ~ | −3.6 | −0.9 | 7.3 | 7.8 | −0.9 | 7.9 | 6.9 | −0.4 | ~ | 3.9 | −8.9 | ~ | 22.1 | 24.7 | 11.5 to 40.5 |
| Consonant score (% correct) | |||||||||||||||||
| 91.0 | 84.5 | 24.6 | 40.8 | 47.9 | 78.8 | 79.2 | 66.3 | 86.5 | 87.1 | 70.8 | 50.8 | 67.9 | 61.7 | 67.9 | 91.0 | 94.1 | 80.0 to 97.9 |
| SRT for consonants in SSN (dB) | |||||||||||||||||
| −1.84 | −0.8 | ~ | 8.1 | ~ | 8.9 | 3.4 | 5.5 | 3.3 | 3.9 | 5.4 | ~ | 6.8 | 10.5 | ~ | 4.0 | −10.4 | −11.9 to 8.4 |
| SRT for consonants in gated SSN (dB) | |||||||||||||||||
| −2.52 | −1.1 | ~ | 9.8 | ~ | −1.0 | 7.9 | 9.6 | −4.3 | 3.2 | 9.0 | ~ | 9.8 | 10.6 | ~ | −25.6 | −27.0 | −37.8 to 17.5 |
| Consonant masking release (dB) | |||||||||||||||||
| 0.68 | 0.3 | ~ | −1.7 | ~ | 9.9 | −4.5 | −4.1 | 7.6 | 0.7 | −3.6 | ~ | −3.0 | −0.1 | ~ | 29.6 | 16.6 | 5.7 to 28.9 |
Note: CI = cochlear implant; SSN = speech-shaped noise; SRT = speech reception threshold.