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Noise levels and treatment names for the six noise stimuli used in playback experiments. Each subject experienced all treatment types in random orders on separate days of testing. Noise playbacks were paired with same-day silent-playback trials (controls). All noise levels are given in dB re 20 µPa rms.
| Noise level | Broadband (10 kHz) | Narrowband (5 kHz) |
|---|---|---|
| Loud | A (64.3 dB rms) | D (59.2 dB rms) |
| Medium | B (54.1 dB rms) | E (51.3 dB rms) |
| Quiet | C (46.7 dB rms) | F (44.1 dB rms) |
