感應線圈助力清晰聽力

　　6月27日VOA聽力：感到線圈助力清楚聽力

　　When psychology professor David Myers went onvacation to Scotland, he was thrilled to visit 800-year-old Iona Abbey. But once the service began, hewas lost. As the sound reverberated around thoseancient stone walls, it was indecipherable by thetime it got to my ears. Then his wife noticed ahearing assistance sign on the wall with a ‘T' on it.The ‘T' stands for telecoil. Myers was wearing hearing aids which contain the inexpensive littlemagnetic sensor. He pressed a button on each hearing aid to activate the feature. And whathappened was just amazing. Suddenly crystal clear sound was coming from the center of myhead as if the person were three feet in front of my face. The abbey had installed a wire - calleda hearing loop or induction loop - which transmits sound via a magnetic signal to the telecoil ina hearing aid or cochlear implant. Once it's switched on, the telecoil acts as a personal wirelessloudspeaker for the listener. Many new hearing aid models use the technology. These areregular church service sound to a hearing aid wearer. Now here’s the sound again transmittedby a hearing loop. Hearing loops are common throughout Western Europe, especially Britainand Scandinavia, where they provide clearer sound in theaters, churches and at ticket windows.Loops have also been installed at the Brisbane Australia airport, and in Hong Kong's Disneyland.Since he got from Scotland in 1999, Myers has been on a mission to introduce loops across theUnited States. The area where he lives in Michigan now has hundreds - from senior centers tothe Grand Rapids airport. Other states, including Arizona, Wisconsin and Florida, have alsoinstalled hearing loops at public spaces in their communities. But hearing assistance systems inthis country more commonly use infrared or FM signals to transmit sound. Myers says theproblem with that technology is it requires people with hearing loss to do the work. To get up,locate, check out, wear and return special equipment. That equipment is usually either aheadset or a neck loop. Janice Schacter says many people with imperfect hearing are reluctantto go through the hassle of putting one on. Schacter in New York city called the hearingprogram.People with hearing loss actually want dignity. They don't want a big neon sign saying, ‘I have a hearing loss.' Schacter's daughter, now 17, who has severe hearing loss, familyoutings became a trial. We would go to a Broadway show, and she couldn't hear the sound.Sometimes the sound director would think the music was loud enough and they thereforedidn't need to mic the music into the headset. Sometimes the headsets were broken. Schacter'sorganization has helped get hearing loops installed at New York venues like the Natural HistoryMuseum, a branch of the Apple store and most of the information booths in the notoriouslynoisy subway system. Arielle Schacter says the hearing loop funnels the transit worker's voiceright into her ear and blocks out the subway noise behind her. I would have a much moredifficult time, I would rely less on hearing and more on lip reading and doing that. And I meanthat's not perfect. Her mother is continuing her push to loop New York City - and other placestoo. Janice Schacter says a charitable foundation in Greece is building an opera house andlibrary in Athens that will have hearing loops. And she's talking to several museums in SouthAfrica about installing loops there.

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