Her voice was barely audible above the noise.

一片嘈杂，她的声音只能勉强听得见。

《牛津词典》

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。

youdao

You can't hear your thoughts, your voice, without solitude. Remove the noise in your life as well.

而没有独处，是不可能听到自己思想的声音，也不可能摒除你生活中的杂音。

youdao

While noise cancellation and voice isolation work as advertised, the Intelligent Mute feature leaves a lot to be desired.

ENGADGET: Blue Microphones Tiki USB microphone review: a thumbdrive-sized mic for mobile recording

The earSmart eS515 uses custom hardware-accelerated algorithms to isolate voice from surrounding environmental noise, dramatically improving the user experience of speech-enabled applications such as virtual assistants and voice search.

ENGADGET: Audience eS515 Smart Sound Processor brings three-mic support and selective audio capture to phones

It makes digital signal processors, analog and mixed-signal circuits and algorithms for voice isolation and noise suppression.

WSJ: WageWorks, Audience Rise in Debuts