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| "Saturation Sound Pressure Level with a 90-dB input" (SSPL90) |
"Output SPL with a 90-dB input" (OSPL90) |
| AGC aids measured using full-on gain |
AGC aids measured using reduced reference-test position |
| AGC aids measured using attack and release levels 55-80-55 |
AGC aids measured using attack and release levels 55-90-55 |
| Attack level for AGC aids determined when a steady state within 2 dB is attained |
Attack level for AGC aids determined when a steady state within 3 dB is attained |
| Release level for AGC aids determined when a steady state within 2 dB is attained |
Release level for AGC aids determined when a steady state within 4 dB is attained |
| I/O curve for AGC aids measured at 2000 Hz with input levels from 50 to 90 dB in 10 dB steps |
I/O curves for AGC aids measured with a choice of 250, 500, 1000, 2000, and 4000 Hz with input levels from 50 to 90 dB in 5 dB steps |
| Telecoil measured with full-on gain |
Telecoil measured with reduced reference-test gain |
| Telecoil measured with a weak magnetic field |
Telecoil measured with a 10 dB stronger magnetic field created with a "Telecoil Magnetic Field Simulator" (TMFS) |
| Telecoil measured with a frequency of 1000 Hz |
Telecoil measured with a range of frequencies between 200 and 5000 Hz. The resulting curve is called the "Sound Pressure Level for an Inductive Telephone Simulator" (SPLITS) curve. |
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Additional measurement: "High-Frequency Average" of the SPLITS curve (HFA-SPLITS) is the average SPLITS value at 1000, 1600, and 2500 Hz. You can also take the "Special Purpose Average" (SPA-SPLITS) for those aids with specified frequencies |
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Additional measurement: Simulated Telephone Sensitivity (STS):
HFA-SPLITS reference-test gain + 60 dB
or
SPA-SPLITS reference-test gain + 60 dB |
