2015/2/18 1 2 Japan February 2015 1 Source: Dillon, Hearing Aids, Chapter 15 Last updated 2 February, 2015 (Kochkin, personal communication). 12 20 35 40 2 45 50 50 60 ( ( 64 ) 74 ) 0 10 20 30 40 50 60 70 80 % 1 2015/2/18 Arlinger, 2005 • 1984 - 25% • 1994 - 65% • 2004 - 82% 42 45 60 15 20 50 56 55 20 to 80 75 55 82 ? 1– 2– : • • • 2 1 ? ? • 2 2 : – – – – – – • (%) Scheurs & Olsen 1985 32 25 Cox et al 2011 54 94 Stephens et al 1991 55 Kobler, Rosenhall & Hansson 2001 66 144 Brooks & Bulmer 1981 70 204 Dillon, Hickson & Lloyd 2011 76 869 Dillon, Birtles & Lovegrove 1999 78 2,127 Jordan, Greisen & Bentzen 1967 78 1,147 Byrne & Dermody 1975 85 Erdman & Sedge 1981 90 30 Boymans et al 2008 93 214 2 2015/2/18 • : ( ) • : ( ) • : • : • Diotic: (ms) • Dichotic: 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -180 -120 -60 0 60 120 180 (deg) Figure 15.2 987 Figure 15.1 . 3 2015/2/18 (dB) 25 90o 20 45° 15 10 5 30° 0 0.1 Figure 15.3 Shaw(1974) 1 (kHz) 10 I 4 2015/2/18 ? • • – – • <1500Hz • >1500Hz Figure 15.5 . SPL 12 kHz SPL 6 kHz Figure 15.4 = 3 degree 5 2015/2/18 • : – Byrne & Noble, 1998; Byrne et al, 1992 : – – – : Abel et al 2000; Keidser et al, 2009 • : : – ( - ) >50dBHL • (L.F. ) Byrne et al, 1992; Noble et al, 1994; Noble et al, 1997 • ; [Florentine, 1976] - Byrne and Noble, 1998 • – [Byrne, Noble & LePage, 1992] – • [Dermody & Byrne, 1975] ( / ) [Byrne & Noble, 1998] – 6 2015/2/18 (cont) • • • • • [Byrne & Noble, 1998] • BTE,ITE,ITC( CIC) ITE,ITC,CIC BTE,ITE,ITC( CIC) • [Eriksson-Mangold & Erlandsson, 1984] • [Barsz, 1991] –“ ” • SN 60o SN 3kHz 9dB 30o SN 3kHz 11dB 8 9dB dB Figure 15.7 SN S/N 3kHz SN 20dB 17dB 7 2015/2/18 Head diffraction (dB) 30 60 o 30o 20 120o 1. : 10 “ 3dB 0 -10 -120 o -20 100 Figure 15.6 -60o 1,000 Frequency (Hz) ”(17dB ) -30o 10,000 5 Shaw (1974) “ 1 ” 2 8 2015/2/18 2. Noise 1. : ”(17dB “ ) 2. + “ ” : (8dB ) + Figure 15.8 ( 3dB , 2dB) ( ) . 3. 2 2 1. . : ”(17dB “ 3dB ) + “ ? ” + 2. : (8dB ) 3. , : - 2dB 2dB) ( 2 ( 1 ) 9 2015/2/18 • – • 3 • “ – ” • – : 2 • 2 ( : ) 2( ) 2 ( ) – (a) – (b) – (c) • 2 ( ) 10 2015/2/18 1. 2. ( ) [Balfour & Hawkins, 1992] 2 3. [Brooks & Bulmer, 1981] 4. 5. 6. AD( ) (Late-onset auditory deprivation) (1 – 2 AD( ) …….. AD( ) (Boothroyd, 1993) ) 2 11 2015/2/18 AD( ) AD( (Boothroyd, 1993) ) [Hurley 1998] Unilateral fittings Bilateral fittings AD( AD( ) ) ( • 35dB • – [Gelfand, Silman & Ross, 1987; Hurley, 1993] – [Gelfand & Silman, 1993; Hattori, 1993; Hurley, 1998] • • – [Hurley, 1999] – [Hurley, 1999] • • – • [Gatehouse, 1999] – – – 1 • ( ) – [Gelfand, Silman & Ross, 1987] : [Silman et al, 1992; Silverman & Silman, 1990] [Gelfand, 1995; Hurley, 1993] [Boothroyd, 1993] • [Gelfand, 1995 (six cases)] 12 2015/2/18 AD( ) • , • –( , , ) • : – – ! , 40%!!) (10%, Siegenthaler & Craig 1981; Jerger et al 1993; Allen et al 2000; Walden & Walden 2005 1 – : • • • , ( ABR – ), : • – – – • • - Hood & Prasher 1990 - Markides 1977, 1982 - LePage 1989; Rajan 1995; Scharf et al 1994 Chmiel et al 1997 Goldstein & Shelly 1981; Johnson et al 1979 13 2015/2/18 ? 2 • (%) Scheurs & Olsen Cox et al 1985 2011 32 54 ( –2 –“ 25 94 Stephens et al 1991 55 Kobler, Rosenhall & Hansson 2001 66 144 Brooks & Bulmer 1981 70 204 Dillon, Hickson & Lloyd 2011 76 869 Dillon, Birtles & Lovegrove 1999 78 2,127 Jordan, Greisen & Bentzen 1967 78 1,147 Byrne & Dermody 1975 85 (“ ) ”, “ 1 ”) - Surr & Hawkins, 1988 ” - Surr & Hawkins, 1988 KEMAR at -90 degrees to wind Erdman & Sedge 1981 90 30 Boymans et al 2008 93 214 • Dillon, Roe & Katsch, NAL. 1 2 ? 14 2015/2/18 • ? : – • • – 15dB 80dBHL 30dBHL SN [Davis & Haggard 1982; Gatehouse & Haggard 1986; Haggard & Hall 1982] • 8 dB Killiion (1997) : – 50dB [Tonning, 1971; MacKeith & Coles 1971] – • : 2 [Chung & Stephens, 1986] 125 250 500 (Hz) 1k 2k 4k 8k 0 20 40 60 (dBHL) 80 , , . 30 dB HL 100 80 dB HL 120 SN 17dB ! Figure 15.11 (× , ) 15 2015/2/18 (Hz) 125 250 500 1k 2k 4k 8k 0 • 20 • 40 60 • (dBHL) 80 100 120 Figure 15.12 (Hz) 125 250 500 1k 2k 4k 8k 1. 0 20 40 2. 1 4 60dBHL 60 (dBHL) 80 100 120 Figure 15.13 16 2015/2/18 : 2 NAL NAL :2 2 1976 (2 NAL-R NAL-RP NAL-NL1 NAL-NL2 1985 1991 2001 2012 SN SN ) 1. 2. & - ( ) 17 2015/2/18 (dB) 7 • 2 6 5 4 • 3 • • 2 • 1 NAL-NL2 0 0 20 40 60 80 (dB) 100 120 NAL-NL2 NAL-NL1 / NAL-NL2 WBCT RECD N / CR BWC RECD REUG UCT REDD REIG HA I/O MLE REAG AC CG AC' ABG ESG BC' RESR BC = = i/p SSPL2cc ESCD SSPLES = = = 18 2015/2/18 : • • ( ) ! : • • ON • ” ” , , CR, CT. 30 (dB) 25 20 CR 15 10 • • : – – – ” ” : – – – – 5 CT 0 30 40 50 60 70 80 90 (dB SPL) 19 2015/2/18 • 2 2 – – • 2 www.NAL.gov.au • 20
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