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Slopes of the group delay function N CR below and above the breakpoint frequency f a|b = 1.5 kHz
| Stimulus level (dB SPL) | Slope below f a|b | Slope above f a|b |
|---|---|---|
| 20 | 0.74 | 0.05 |
| 30 | 0.65 | 0.02 |
| 40 | 0.55 | 0.04 |
| 50 | 0.42 | 0.09 |
The slope of N CR was determine using data only up to 8 kHz. The slope of N CR above f a|b is near zero. There seems to be an orderly decrease in slope below f a|b with increase in level. The slopes were determined via power law fits to the N CR loess trend curves
