202 FONIX 7000 Hearing Aid Analyzer
POWER The output of an aid, in dB SPL.
PROBE A miniature microphone with a thin, flexible tube that is inserted into
MICROPHONE an ear canal to measure sound.
PT BURST A burst of ten pure tones corresponding to standard audometric
frequencies. The entire signal lasts for less than two seconds.
PURE TONE A testing tone consisting of only one frequency.
REAL EAR A special test procedure using a probe microphone and a special
MEASURE- instrument capable of measuring sound levels inside an ear canal.
MENT
REAL-TIME The ability to view instantly the results of hearing aid tests.
TESTING
RECD Real Ear to Coupler Difference. Measurement of the difference in
decibels between the output of a hearing aid found with a probe
microphone in the ear canal and the output of the aid found in a 2-cc
coupler.
REFERENCE With the QUIK-PROBE Option, the microphone, placed above the ear,
MICROPHONE which provides a reference measurement that is compared to that of the
probe microphone placed in the ear canal.
REFERENCE The location in a test chamber where the microphone of a hearing aid
POINT must be placed for accurate testing. In the 7000, it is the small circle in
the center of the test chamber.
REAR Real Ear Aided Response. See “Aided Response.”
REDD Real-Ear to Dial Difference. This is the difference of the output of an
audiometer, in dB HL, and the measured dB SPL value measured with a
probe microphone in the ear.
REIR Real Ear Insertion-gain Response. See “Insertion Gain.”
RESONANCE The tendency of an acoustic system to reinforce sounds of a certain
frequency, the frequency determined by the shapes and sizes of the
components of the system.
REOR Real Ear Occluded Response. See “Occluded Response.”
RESPONSE LIMIT The high and low points of the frequency range found in the ANSI test
sequence conditions.
RESR Real Ear Saturation Response. A special case of the REAR for which the
hearing aid is operated at its saturation level. This is akin to the coupler
measurement known as the “SSPL-90.”
REUR Real Ear Unaided Response. See “Unaided Response.”
