HEARING LOSS AND NOISE EXPOSURE CHARTS
|
Noise exposure causes a high frequency sensorineural hearing loss which falls in an area that is critical for speech understanding. As exposure increases, the high frequency dip widens to affect the mid frequency area. |
CONTRIBUTION OF EACH FREQUENCY BAND
TO SPEECH DISCRIMINATION (% out of 100)
| FREQUENCY Hz | BAND IMPORTANCE (%) |
|---|---|
| 250 | 6 |
| 500 | 17 |
| 1000 | 19 |
| 1500 | 13 |
| 2000 | 13 |
| 3000 | 14 |
| 4000 | 10 |
| 6000 | 8 |
LOW FREQUENCIES = 23% IMPORTANCE
MID FREQUENCIES = 45% IMPORTANCE
HIGH FREQUENCIES = 32% IMPORTANCE
Click here to read the whole article "Do you Hear What I Hear?".