GSi 61 - Page 12

Preliminary Checks--------------------------------------------------------------------------------- 3-1
Patient Instructions --------------------------------------------------------------------------------- 3-2
Placement of the Earphones ------------------------------------------------------------------3-2
Placement of the Insert Phone ----------------------------------------------------------------3-2
Placement of the Bone Vibrator ---------------------------------------------------------------3-2
Routine Test Procedures -------------------------------------------------------------------------- 3-3
Threshold Determination (Pure Tone): Modified Hughson-Westlake ------------------3-3
Spondaic Speech Testing, Speech Reception Threshold (SRT) --------------------------3-4
Speech Discrimination (PB Words) -----------------------------------------------------------3-4
Alternate Binaural Loudness Balance (ABLB) or Fowler Test -------------------------------- 4-2
Monaural Loudness Balance (MLB) Test -------------------------------------------------------- 4-3
Short-Increment Sensitivity Index (SISI) --------------------------------------------------------- 4-4
Modifications to the SISI test ---------------------------------------------------------------- 4-4
High Frequency Testing (Optional)--------------------------------------------------------------- 4-5
High Frequency Testing: Setup Diagrams ---------------------------------------------------4-5
Sensorineural Acuity Level (SAL) Test ---------------------------------------------------------- 4-6
Hearing Aid Evaluation ---------------------------------------------------------------------------- 4-6
Tone Decay Test ------------------------------------------------------------------------------------ 4-8
Lombard or Voice-Reflex Test ---------------------------------------------------------------------- 4-8
Delayed Auditory Feedback (DAF)--------------------------------------------------------------- 4-9
Staggered Spondaic Word Test (SSW)----------------------------------------------------------4-10
Doerfler-Stewart Test ------------------------------------------------------------------------------4-11
Modified Doerfler-Stewart Test--------------------------------------------------------------4-11
Pure Tone Stenger Test ---------------------------------------------------------------------------4-12
Biological Calibration Check ----------------------------------------------------------------------- 5-1
Periodic Checks ------------------------------------------------------------------------------------- 5-1
Calibration Reference Levels ---------------------------------------------------------------------- 5-3
Line Voltage Brownout and Interruptions -------------------------------------------------------- 5-6
The Message “CAL” -------------------------------------------------------------------------------- 5-6
The Message “Help” -------------------------------------------------------------------------------- 5-6
Grason-Stadler GSI
®
61 CLINICAL AUDIOMETER
Chapter 3
Operation
Chapter 4
Special Test
Procedures
Chapter 5
Routine
Maintenance
Contents-2
1761-0100 Rev. B
Grason-Stadler GSI
®
61 CLINICAL AUDIOMETERGrason-Stadler GSI
®
61 CLINICAL AUDIOMETER