VOA标准英语2011--Hearing Aid Common in Europe Turns Up Volume in US
时间:2019-01-13 作者:英语课 分类:VOA标准英语2011年(十二月)
Hearing Aid Common in Europe Turns Up Volume in US
More than 10 percent of Americans have some form of hearing loss. Even with a hearing aid, deciphering sounds in places like airports, theaters and places of worship can be tough.
However, a not-so-new technology, commonly used in Europe, could help change that.
When psychology 1 professor David Myers went on vacation to Scotland, he was thrilled to visit 800-year-old Iona Abbey. But once the service began, he was lost.
“As the sound reverberated 2 around those ancient stone walls, it was indecipherable by the time it got to my ears,” he remembers.
Then his wife noticed a hearing assistance sign on the wall with a ‘T’ on it. The ‘T’ stands for telecoil. Myers was wearing hearing aids which contain the inexpensive little magnetic sensor 3, but the sensor wasn't activated 5.
Once he pressed a button on each hearing aid to activate 4 the feature, he immediately noticed a difference.
Janice and Arielle Schacter at one of the New York subway information booths which is equipped with a hearing loop.
“And what happened was just amazing," Myers says. "Suddenly crystal clear sound was coming from the center of my head as if the person were three feet in front of my face.”
In the loop
The abbey had installed a wire - called a hearing or induction 6 loop - which transmits sound via a magnetic signal to the telecoil in a hearing aid or cochlear implant 7. Once it's switched on, the telecoil acts as a personal wireless 8 loudspeaker for the listener. Many new hearing aid models use the technology.
Hearing loops are common throughout Western Europe, especially Britain and 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.
Hearing assistance sign which alerts people that the area or facility is equipped with a hearing loop.
Since returning from Scotland in 1999, Myers has been on a mission to introduce loops across the United States. The area where he lives in Michigan now has hundreds - from senior centers to the Grand Rapids airport. Other states, including Arizona, Wisconsin and Florida, have also installed hearing loops at public spaces in their communities.
Making it easy
But hearing assistance systems in this country more commonly use infrared 9 or FM signals to transmit sound.
Myers says the problem 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 a headset or a neck loop. Janice Schacter, who runs an advocacy group in New York City called the Hearing Access Program, says many people with imperfect hearing are reluctant to go through the hassle of putting one on.
“People with hearing loss actually want dignity," she says. "They don’t want a big neon sign saying, ‘I have a hearing loss.'”
For Schacter’s daughter, 17-year-old Arielle, who has severe hearing loss, family outings became a trial.
“We would go to a Broadway show, and she couldn’t hear the sound," Schacter says. "Sometimes the sound director would think the music was loud enough and they therefore didn’t need to mic the music into the headset. Sometimes the headsets were broken.”
Spreading the word
Schacter’s organization has helped get hearing loops installed at New York venues 10 like the Natural History Museum, a branch of the Apple store and most of the information booths in the notoriously noisy subway system.
Arielle Schacter says the hearing loop funnels 11 the transit 12 worker’s voice right into her ear while blocking out the subway noise behind her.
Without it, she says, "I would have a much more difficult time, I would rely less on hearing and more on lip reading and doing that. And I mean that’s not perfect.”
Her mother is continuing her push to loop New York City - and other places too. Janice Schacter says a charitable foundation in Greece is building an opera house and library in Athens that will have hearing loops. And she’s talking to several museums in South Africa about installing loops there.
- She has a background in child psychology.她受过儿童心理学的教育。
- He studied philosophy and psychology at Cambridge.他在剑桥大学学习哲学和心理学。
- Her voice reverberated around the hall. 她的声音在大厅里回荡。
- The roar of guns reverberated in the valley. 炮声响彻山谷。
- The temperature sensor is enclosed in a protective well.温度传感器密封在保护套管中。
- He plugged the sensor into a outlet.他把传感器插进电源插座。
- We must activate the youth to study.我们要激励青年去学习。
- These push buttons can activate the elevator.这些按钮能启动电梯。
- His induction as a teacher was a turning point in his life.他就任教师工作是他一生的转折点。
- The magnetic signals are sensed by induction coils.磁信号由感应线圈所检测。
- A good teacher should implant high ideals in children.好教师应该把高尚理想灌输给孩子们。
- The operation to implant the artificial heart took two hours.人工心脏植入手术花费了两小时。
- There are a lot of wireless links in a radio.收音机里有许多无线电线路。
- Wireless messages tell us that the ship was sinking.无线电报告知我们那艘船正在下沉。
- Infrared is widely used in industry and medical science.红外线广泛应用于工业和医学科学。
- Infrared radiation has wavelengths longer than those of visible light.红外辐射的波长比可见光的波长长。
- The band will be playing at 20 different venues on their UK tour. 这个乐队在英国巡回演出期间将在20个不同的地点演出。
- Farmers market corner, 800 meters long, 60 meters wide livestock trading venues. 农牧市场东北角,有长800米,宽60米的牲畜交易场地。 来自互联网
- Conventional equipment such as mixing funnels, pumps, solids eductors and the like can be employed. 常用的设备,例如混合漏斗、泵、固体引射器等,都可使用。
- A jet of smoke sprang out of the funnels. 喷射的烟雾从烟囱里冒了出来。