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보청기의 처방법 (Fitting formula)

보청기의 처방법 (Fitting formula). Pierce Lee 한림대학교 자연과학대학 언어청각학부 2003 년 5 월 19 일. dB. 0. 250. 500. 1K. 2K. 4K. 8K. Frequency. Mirroring of the Audiogram. 60. 40. 20. 감각신경성 난청의 불쾌역치와 쾌적역치. Berger Method. 125 Hz = No higher than 250 Hz 250 Hz = 6 dB lower than 500 Hz

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보청기의 처방법 (Fitting formula)

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  1. 보청기의 처방법 (Fitting formula) Pierce Lee 한림대학교 자연과학대학 언어청각학부 2003년 5월 19일

  2. dB 0 250 500 1K 2K 4K 8K Frequency Mirroring of the Audiogram 60 40 20

  3. 감각신경성 난청의 불쾌역치와 쾌적역치

  4. Berger Method 125 Hz = No higher than 250 Hz 250 Hz = 6 dB lower than 500 Hz 500 Hz = UCL +８dB or 110 dB, whichever is lower 1000 Hz = UCL + 4 dB 2000 Hz = UCL + 6 dB 3000 Hz = UCL + 5 dB 4000 Hz = UCL + 6 dB

  5. POGO Method (UCL@500Hz + UCL@1000Hz + UCL@2000Hz)/3 + 4 dB

  6. Libby 1/3, 2/3 gain Method

  7. NAL Method

  8. NAL Method

  9. NAL Method

  10. DSL Method

  11. DSL Method <그림 7-3> DSL "SPL-o-gram". Amplified speech targets - LTASS = Required gain. (X=normal hearing threshold, T=Hearing listener's threshold, S=LTASS(long term average speech spectrum, +=amplified speech targets and U=UCL.)

  12. POGO II, NAL-RP, DSL Method의 비교 1 <그림 7-4> Audiogram of a mild, gently slopping sensorineural hearing loss, and insertion gains prescribes by the DSL, POGO II and NAL-RP.

  13. POGO II, NAL-RP, DSL Method의 비교 1 <그림 7-5> Audiogram of a moderate, steeply slopping sensorineural hearing loss, and insertion gains prescribes by the DSL, POGO II and NAL-RP.

  14. Loudness Growth Chart of Sensori-neural HL <그림 7-6> Loudness growth chart

  15. Fig. 6 Method

  16. DSL I/O <그림 7-7> Speech Sounds on an audiogram

  17. DSL I/O <그림 7-8> Comparison of normal hearing-impaired dynamic ranges

  18. DSL I/O

  19. UCL test

  20. UCL test <그림 7-9> Picture developed for use with children in obtaining loudness judgement <A. from Kawell et al. B. from Skinner>

  21. UCL test

  22. UCL test

  23. Pure tone hearing threshold

  24. Pure tone hearing threshold

  25. Acoustic reflex threshold <그림 7-10> SSPL90 Prescription Procedure(from Hawkins)

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