You're in conversation with one person but the signal to noise ratio is low, meaning his voice, the signal, is quiet relative to the ambient conversational noise.

你正在和一个人谈话，但是信号和噪音的比率低，也就是说，对方的声音(信号)，相对于周围的谈话声(噪音)是安静的。

youdao

Yes yes noise nuisance or interfere with the voice of the compressor will be issued at the same time the work of different levels of noise and affect the physical and mental health staff.

乐音是是令人厌恶或搅扰的声响，在紧缩机任务的同时还会发出不同水平的乐音，影响任务职员的身心安康。

youdao

Our voice activity detection method is simple to be implemented and calculated and has high accuracy, which can work in the real time digital communication network with better signal-noise-ratio.

基于频谱特征的语音激活检测方法易于实现，计算量小且准确率高，适合较高信噪比的实时数字通信网络中。

youdao

Customers can also stay in touch via video chat, while enjoying excellent voice quality with reduced background noise through the built-in digital microphone.

ENGADGET: Gateway pumps out EC Series ultraportables

To start with, the handset will feature a dedicated Waze launcher key for GPS navigation duties, and will also sport "high level noise reduction and echo cancellation, " along with hands-free voice activation.

ENGADGET

We have designed it to also deliver stunning voice quality with smartphone and Skype hands-free calls through adaptive communication technologies that can cancel ambient noise and focusing the microphone-array for accurate voice pick-up.

ENGADGET: Creative announces Sound BlasterAxx wireless speakers with mics (update: hands-on!)