Sound was becoming more and more distorted through the use of hearing aids.

由于使用助听器，声音变得越来越失真。

《柯林斯英汉双解大词典》

I kept hearing the sound of applause in the background.

我不断听到背景音中有掌声。

《柯林斯英汉双解大词典》

According to Van der Meer, plenty of senses are activated by pressing a pen on paper, seeing the letters written and hearing the sound made while writing.

根据范德梅尔的说法，当你把笔按在纸上，看到写出来的字母，以及听到写字时发出的声音时，很多感觉都会被激活。

youdao

But extra wax can harden and form a blockage that interferes with sound waves and reduces hearing.

VOA: special.2010.03.31

So when we hear any particular sound, again, we're hearing an amalgam of many sounds, and the importance of each of these partials in the aggregate of sound is what gives it its particular color.

那么,当我们听到某个声音的时候,其实听到的是很多声音的混合物,混合声音中的这些分音之所以重要,就是因为它们决定了自身特定的音色

耶鲁公开课 - 聆听音乐课程节选

The result is a pair of intelligent, high-fidelity active sound-reduction earplugs that allow natural hearing when sound is safe and provide automatic protection from both loud, sustained music and sudden, loud percussive sounds.

ENGADGET: Etymotic Music?Pro 9-15 earplugs bring high-end hush to audiences, lets us enjoy speed metal safely

Residents reported hearing a sound like thunder around the time of the slide, CNN affiliate KING-TV reported.

CNN: Massive landslide threatens Washington state homes

One provides natural hearing when sound levels are safe and either 9- or 15-dB sound reduction when sounds exceed safe levels.

ENGADGET: Etymotic Music?Pro 9-15 earplugs bring high-end hush to audiences, lets us enjoy speed metal safely