youdao

To conserve recording capacity, most audio recorders have a "record when voice is present" (voice activated mode).

为了节省储存容量，大多数的音频记录器中的“记录本时的声音”(语音激活模式)。

youdao

Recordant, an in-store monitoring company based in Atlanta, provides shop assistants with digital-audio recorders, to be worn around their necks, which record all their conversations with shoppers.

总部位于亚特兰大的一家名为Recordant的店内监控公司为超市导购员提供了数码声音录音器，他们要把这个装置戴在他们颈项周围，他们与顾客的谈话也会因此而记录下来。

youdao

He carries around video equipment, cameras and audio recorders to capture his conversations, commutes, trips and experiences.

CNN: Microsoft researcher converts his brain into 'e-memory'

The lesson for all politicians and anyone else making statements that could be embarrassing is simple: in this era of access to incredibly good audio and video recorders by everyone that carry a smartphone or tablet, it would probably be wise to be very careful not to make off-the-cuff candid remarks, especially if you are running for president.

FORBES: The Romney Video: Whoever Shot It Broke The Law in Florida

The proliferation of smartphones and tablets that became very useful mobile recorders for images, audio and video has exponentially accelerated the structured data creation.

FORBES: Big Data: Big Hype?