You can also find the power button and lock screen key on this squiggly cable, as well as another microphone for noise cancellation and improved voice quality.
这根弯弯曲曲的线缆上还能找到开机键和锁屏键，以及另外一个麦克风，用于噪音消除和提升语音质量。
2
Each recording had a series of rhyming words that the volunteers had to identify, with and without the intelligent microphone, for different levels of background noise.
每段录音都有一系列的押韵字词，志愿者要在不同程度的背景噪音下佩戴与不佩戴该智能扩音器来辨别这些词。
3
Participants understood almost 50 per cent more speech with the intelligent microphone with average background noise.