Acoustic effects of the device2-a
| Frequency (kHz) | Change in timing (μsec)2-b | Change in level (dB)2-c | ||||||
|---|---|---|---|---|---|---|---|---|
| n | Median | Min | Max | n | Median | Min | Max | |
| 4 | 5 | −65 | −91 | −33 | 4 | −9 | −2 | −12 |
| 6 | 5 | −29 | −54 | −12 | 4 | −16 | −10 | −23 |
| 8 | 5 | −6 | −18 | 53 | 4 | −15 | −8 | −20 |
↵F2-a Cochlear microphonic measurements of the difference in the timing and level of sounds reaching the eardrum before versus after device insertion, with the sound source located at 0° az, 0° el (data from Gold and Knudsen, 1999).
↵F2-b Time difference nearest 0 μsec for the measured phase difference; negative values indicate delays.
↵F2-c Negative values indicate attenuations.