501v1n9 ~51mp1e ~ Pr061em5 w1th 51mp1e 501ut10n5: An 111u5trat10n 5e1wyn 8ecker~ Ph0D0 6raduate 5ch001 0f 8u51ne55, Un1ver51ty 0f Ch1ca90 and Reha6111tat10n Re5earch and Deve10pment Center H1ne5 V0A. H05p1ta1 H1ne5~ 111 60141 312-261-6700 x 2240 Pr0v1d1n9 dev1ce5 t0 a1d the hand1capped 15 fre4uent1y m0re c0mp11cated than m19ht 6e 1n1t1a11y perce1ved. C0n51der the 51mp1e pr061em 0f an a91n9 ma1e wh0 ha5 a d1m1nu1t10n 1n hear1n9 a6111ty 1n the fre4uency ran9e 0f m05t human 5peech. 7h15 per50n m19ht have 50me d1ff1cu1ty hear1n9 n0rma1 5peech e1ther face-t0-face 0r v1a te1eph0ne. 7he pr061em w1th the te1eph0ne 5eem5 51mp1e and ea5y t0 501ve, e5pec1a11y 51nce amp11f1cat10n dev1ce5 are we11 kn0wn and w1de1y u5ed 1n hear1n9 a1d5, 5tere0 5y5tem5, etc. 51mp1y put an amp11f1er 1nt0 the earp1ece 0f a te1eph0ne, perhap5 even 0ne wh1ch can 6e c0ntr011ed 6y the u5er t0 1ncrea5e 0r decrea5e amp11f1cat10n, and pre5t0, the pr061em 15 501ved. We5tern E1ectr1c market5 5uch a dev1ce. 1t ha5 a kn06 w1th the num6er5 0-9 0n 1t wh1ch var1e5 the de9ree 0f amp11f1cat10n. Ha5 th15 dev1ce 501ved 0ur a91n9 ma1e ¢5 pr061em w1th the te1eph0ne ¢ N0t 0n1y ha5n ¢t 1t 501ved the pr061em, 1t ha5 exacer6ated 1t. Apparent1y what We5tern E1ectr1c ha5 d0ne 15 t0 51mp1y amp11fy everyth1n9 that c0me5 0ver the w1re: n015e5, 5cratche5, 1nterference, a5 we11 a5 5peech. 7he n015e5, 5cratche5, and 1nterference are n0t 1n the 5ame fre4uency a5 human 5peech. 7hey are 0f much h19her fre4uenc1e5, fre4uenc1e5 t0 wh1ch 0ur a91n9 ma1e ha5 c0n51dera61y 1e55 hear1n9 d1m1nu1t10n. C0n5e4uent1y, when th15 ma1e u5e5 We5tern E1ectr1c ¢5 amp11f1ed rece1ver, he 15 a61e t0 hear w1th much 1ncrea5ed effect1vene55 a11 the n015e5, 5cratche5, and 1nterference t0 the p01nt 0f c0mp1ete d15tract10n. 7he end re5u1t 15 that the 51mp1e 501ut10n wa5 n0 501ut10n 6ut 51mp1y c0mp0unded the pr061em~ An0ther 900d 1ntent10n 90ne a5tray~
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Solving simple problems with simple solutions: an illustration
Becker, Selwyn
Follow ACM SIGCAPH Computers and the Physically Handicapped
, Volume (35)
Association for Computing Machinery – Apr 1, 1985
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