FONIX® 8000 - Frye Electronics

108 FONIX 8000 Hearing Aid Test System
9. RTG Measured: Measured reference test gain
10. EQ Inp Noise: Equivalent input noise measurement
11. Resp Limit: The response limit level is determined by taking the three frequency
average of the RESP 50 curve and subtracting 20 dB.
F1 is where the RESP 50 curve crosses the response limit level on the way
up.
F2 is where the RESP 50 curve crosses the response limit level on the way
down.
12. HFA/SPA: Three frequency average chosen in the MENU.
13. TDH: total harmonic distortion measurements and the frequencies and
amplitudes at which they are taken.
14. HFA/SPA-SPLITS: Three-frequency average of the telecoil frequency
response curve.
15. RSETS: The difference between the HFA/SPA of the microphone response
curve and the telecoil response curve.
16. Battery Current measurement
17. I/O curves: the input/output measurements taken of AGC aids. Only selected
frequencies are tested.
18. I/O curve selection box: the key to the I/O graph, listing which frequencies
go with which curve.
19. Attack and release measurements, including the frequencies at which they
were measured.
Test Result Differences with ANSI 96 and ANSI 87
• In ANSI 87 and ANSI 96, the response curve (2) is sometimes measured
at 50 dB SPL
• In ANSI 87, I/O (17) is only measured at 2000 Hz
• In ANSI 87, attack and release (19) is only measured at 2000 Hz
• In ANSI 87, AGC aids are measured at full-on gain for the entire test
sequence
• In ANSI 87, the OSPL90 curve is called SSPL90
• In ANSI 96, RSETS (15) is called STS-SPLITS
• In ANSI 87, the telecoil measurement (3, 14, 15) is much different. There
is only one measurement called “TCOIL 10 mA/m”
To delete the displayed results, press [F6] and use [,] to select DELETE
ALL CRVS. Press [] to perform the deletion.