TABLE VI.
Effects of Vowel Level on Q Values for Second Formant Changes in Noise.
| Vowel Level |
2nd Formant |
High SR | Medium SR | Low SR | Total |
|---|---|---|---|---|---|
| 33 dB SPL | 2000 | 6.16 | Not tested | Not tested | |
| 1900 | 4.93 | ||||
| 1800 | 4.37 | ||||
| 1750 | 3.46 | ||||
| 1725 | 2.77 | ||||
| 43 dB SPL | 2000 | 4.44 | Not tested | Not tested | |
| 1900 | 3.55 | ||||
| 1800 | 3.15 | ||||
| 1750 | 2.49 | ||||
| 1725 | 1.99 | ||||
| 53 dB SPL | 2000 | 3.76 | 3.94 | 4.15 | 6.77 |
| 1900 | 3.00 | 3.15 | 3.32 | 5.41 | |
| 1800 | 2.66 | 2.80 | 2.95 | 4.80 | |
| 1750 | 2.11 | 2.21 | 2.33 | 3.80 | |
| 1725 | 1.69 | 1.77 | 1.65 | 3.04 | |
| 63 dB SPL | 2000 | 3.21 | 3.74 | 4.20 | 6.41 |
| 1900 | 2.57 | 2.99 | 3.36 | 5.12 | |
| 1800 | 2.28 | 2.65 | 2.98 | 4.54 | |
| 1750 | 1.80 | 2.10 | 2.36 | 3.60 | |
| 1725 | 1.44 | 1.68 | 1.88 | 2.87 | |
| 73 dB SPL | 2000 | 3.49 | 3.74 | 3.82 | 6.31 |
| 1900 | 2.79 | 2.99 | 3.06 | 5.05 | |
| 1800 | 2.48 | 2.65 | 2.71 | 4.48 | |
| 1750 | 1.96 | 2.10 | 2.15 | 3.55 | |
| 1725 | 1.57 | 1.68 | 1.71 | 2.83 |