RECD Refresher Course17th November 2004

Setting prescriptive targetsSetting prescriptive targets

Greg NassarGreg Nassar

Clinical ScientistClinical Scientist

MCHAS MCHAS

RECD Refresher Course17th November 2004

Prior to child arrivingPrior to child arriving

• Select a clientSelect a client• PTA PTA (save and close as we don’t have PMS)(save and close as we don’t have PMS)

• Select appropriate hearing aidSelect appropriate hearing aid• Open HA software (new battery, connect Open HA software (new battery, connect

leads, switch on then….)leads, switch on then….)• Open REM softwareOpen REM software

– DSL [i/o] or NAL-NL1 set-up screens– Calibrate new probe tube– Prepare coupler response

RECD Refresher Course17th November 2004

DSL [i/o] set up on Unity DSL [i/o] set up on Unity

• Access via the screwdriver iconAccess via the screwdriver icon• Check DOBCheck DOB• Transducer- how did you test Transducer- how did you test

hearing?hearing?• HL to SPL- measured or manualHL to SPL- measured or manual• RE to 2cc- Measured or manaulRE to 2cc- Measured or manaul• Max Output (ULLs)Max Output (ULLs)• Speech- UWO is specific child Speech- UWO is specific child

spectrum that takes child’s own spectrum that takes child’s own voice into account voice into account (see Phonak Focus 20)(see Phonak Focus 20)

• Circuit- majority of HA on contract Circuit- majority of HA on contract have fixed CR. If planning a linear have fixed CR. If planning a linear strategy set to LINEARstrategy set to LINEAR

• Compr. Threshold- minimum or Compr. Threshold- minimum or 40-45 if WDRC strategy40-45 if WDRC strategy

RECD Refresher Course17th November 2004

DSL [i/o] set up on AuricalDSL [i/o] set up on Aurical• First screenFirst screen• Check DOBCheck DOB• Transducer- how did you test Transducer- how did you test

hearing? hearing? – Sound Field (uses REUR for

HL- SPL transform)– Insert/custom (used EAR3

with earmould) – TDH- uses average REDD

(discussed earlier)– ME Insert (more on this later)

• HL to SPL- predicted or HL to SPL- predicted or measuredmeasured

• HI typeHI type• Compression type- as beforeCompression type- as before• Compression Threshold- as Compression Threshold- as

beforebefore

RECD Refresher Course17th November 2004

NAL-NL1 set up on Unity NAL-NL1 set up on Unity

• Similar to DSLi/o except:Similar to DSLi/o except:– Number of hearing aids– Limiting refers to how MPO

on hearing aid is adjusted (single channel or multichannel)

– Earmould acoustics– Number of compression

channels ((new DSL m[i/o])– Uses BC values (new DSL

m[i/o])– Can measure REIR &

REAG

RECD Refresher Course17th November 2004

NAL-NL1 set up on AuricalNAL-NL1 set up on Aurical

• Same as previous but Same as previous but with additional control with additional control to select REAG or to select REAG or REIGREIG

RECD Refresher Course17th November 2004

Hello young man!Hello young man!

• OtoscopyOtoscopy

• Tympanometry (if not performed during behavioural audiometry)Tympanometry (if not performed during behavioural audiometry)

• Measure RECDMeasure RECD– Save session, then re-open from session list

• Send him out/for a break/breather etc…Send him out/for a break/breather etc…• Attach aid to coupler Attach aid to coupler

– Close lid– 50, 65, 80 dB speech noise (modulated on Aurical)– 90 dB pure tone sweep

• Program aidProgram aid

RECD Refresher Course17th November 2004

Demo then hands on Demo then hands on practical sessionpractical session