BBC环球慢速英语 第509期:声音的含义(5)

voice 1: Next, the scientists made the sound into a computer signal. This permitted them to make changes to the sound. They experimented with high and low versions of the sound. They played the new recordings to the group of people. They were surprised with their findings.
声音1：接下来，科学家将声音转换成计算机信号。这使他们得以对声音做出改变。他们用高版本声音和低版本声音进行了实验。他们向同一批志愿者播放了新录音。实验结果令他备感惊讶。

voice 2: Removing the lower sounds from the recording improved it. The people said the sound was not as horrible. But they did not see any effect from removing the higher sounding parts. So, the experiments showed that it was the lower sounds in the original noise that produced the horrible feeling. This was surprising. It is usually higher sounding noise that people say they do not like.
声音2：去掉录音中较低的声音使情况得到了改善。人们说声音听起来不那么可怕了。但去掉较高的声音后，他们并未看到任何效果。因此，实验表明，原始声音中较低的部分会产生可怕的感觉。这令人感到吃惊。人们通常会说他们不喜欢较高的声音。