Measurements made at RTGP
Frequency Response Curve
- Input = 60 dB SPL
- Input = 50 dB if aid would overload: Low gain aids and AGC aids
Frequency Range
- Determined from Frequency Response Curve
- Average of 1000, 1600, and 2500 Hz, and subtract 20 dB.
- Draw horizontal line. Where horizontal line crosses response curve at left is F1 (lowest frequency) and on right is F2 (highest frequency)
AGC Hearing Aids (with 50 dB input)