Table 3.
Means and Standard Deviations in dB SPL (sound pressure level) for Speech Identification Thresholds in Quiet.
| Listening Condition |
|||||
|---|---|---|---|---|---|
| HL Listener Group | Room Condition | Unaided | Bilateral Aided | Right Aided | Left Aided |
| Younger (n = 10) | BARE | 45.0 (10.4) | 35.5 (5.6) | 37.4 (6.2) | 36.2 (8.2) |
| PLEX | 48.4 (9.2) | 36.4 (5.7) | 38.5 (5.0) | 37.6 (7.3) | |
| Older (n = 10) | BARE | 55.1 (13.4) | 38.2 (6.5) | 40.3 (6.0) | 41.3 (9.8) |
| PLEX | 58.2 (12.0) | 40.0 (5.5) | 41.4 (4.6) | 43.8 (7.5) | |
NOTES: Unaided thresholds from Marrone et al. (2008b) are given for comparison. BARE indicates bare room condition with no surface coverings applied. PLEX indicates room covered with reflective Plexiglas© panels.