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Conducting a Comprehensive Voice Assessment in Parkinson’s Disease - page 15 / 22

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ASSESSING PITCH…CONT’ D….

TASK

            1)  Begin by singing a sound in the middle vocal range

                             use:  pitch pipe    - piano /keyboard

         2)   Go down one tone at a time until reaching lowest range.    

         3)   Afterwards patient goes up scale one tone at a time until reaching    

                highest note his/her range.    Repeat 3 times.

         4)   Compare pitch range with habitual pitch during paragraph oral reading

         5)   Determine if patient is using most efficient pitch; pitch difference

                should be less than 2 tones.

Instrumentation

                -Visipitch                                    -Phonatory Function Analyzer

                -Computerized Speech Lab      -Chromatic Tuner

 Acoustic Analysis - Helps identify vocal range & fundamental frequency Fo

                                   - Provides objective measures of severity    

                                   -  Usually higher Fo in (PD)  

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