Table 2 Correction factors for right and left channels of Sennheiser PXC450 noise-cancelling headphones with reference to TDH-39 supra-aural earphones
From: Hearing screening for school children: utility of noise-cancelling headphones
| Â | Frequency (Hz) | |||
|---|---|---|---|---|
Correction factor | 500 | 1000 | 2000 | 4000 |
Right | 0 | 0 | +5* | +10* |
Left | 0 | +5* | 0 | 0 |