○  TED英语演讲稿：四种影响我们的声音方式  ○

　　The third way in which sound affects you is cognitively. You can't understand two people talking at once ("If you're listening to this version of") ("me you're on the wrong track.") or in this case one person talking twice. Try and listen to the other one. ("You have to choose which me you're going to listen to.")

　　We have a very small amount of bandwidth for processing auditory input, which is why noise like this -- (Office noise) -- is extremely damaging for productivity. If you have to work in an open-plan office like this, your productivity is greatly reduced. And whatever number you're thinking of, it probably isn't as bad as this. (Ominous music) You are one third as productive in open-plan offices as in quiet rooms. And I have a tip for you. If you have to work in spaces like that, carry headphones with you, with a soothing sound like birdsong. Put them on and your productivity goes back up to triple what it would be.

　　The fourth way in which sound affects us is behaviorally. With all that other stuff going on, it would be amazing if our behavior didn't change. (Techno music inside a car) So, ask yourself: Is this person ever going to drive at a steady 28 miles per hour? I don't think so. At the simplest, you move away from unpleasant sound and towards pleasant sounds. So if I were to play this -- (Jackhammer) -- for more than a few seconds, you'd feel uncomfortable; for more than a few minutes, you'd be leaving the room in droves. For people who can't get away from noise like that, it's extremely damaging for their health.

　　And that's not the only thing that bad sound damages. Most retail sound is inappropriate and accidental, and even hostile, and it has a dramatic effect on sales. For those of you who are retailers, you may want to look away before I show this slide. They are losing up to 30 percent of their business with people leaving shops

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