FONIX® 8000 - Frye Electronics

228 FONIX 8000 Hearing Aid Test System
SPA Special purpose average: according to ANSI S3.22, the averaged
response at specially designated frequencies.
SPL Sound Pressure Level. Expressed in decibels (dB), a logarithmic
measure of the energy (amplitude) of a particular sound as compared to
the energy of a specified reference sound.
SSPL (OSPL) Saturation Sound Pressure Level. The greatest SPL that a given
amplifier can produce.
SSPL-90 Saturated Sound Pressure Level for an input of 90 dB SPL.
(OSPL-90)
SWEEP A sequence of pure tone frequencies, which generates a frequency
response curve.
TELECOIL Same as COIL. In the 8000, it is an accessory that generates a magnetic
field for testing the telephone pickup of a hearing aid. The telecoil is a
standard feature with the 8050 & 8060 and 8120 sound chambers.
UNWEIGhTED A measurement of the amplification (gain) of an aid using an input
GAIN signal (source) that has equal power across all test frequencies.
WArBLE TONE A pure tone with slight, but rapid, frequency variations.
WEIGhTED A measure of the amplification (gain) of an aid, using an input signal
GAIN (source) that has a spectral shape similar to that of the long term
average of speech.
WEIGhTED The measurement of amplitude, in SPL, of the output of an aid, using
POWEr an input signal (source) that has a spectral shape similar to that of the
long term average of speech.
WhITE NOISE A signal composed of all frequencies, which vary randomly in phase,
each frequency having equal long-term energy levels.
WINChAP Windows® Computer Hearing Aid Program used for storing hearing aid
tests and client information on a personal computer.