One is an Apple TV, a $229 set-top box in my living room that plays digital audio and video through a standard home-theater system.

一个是Apple TV机顶盒，价格229美元，放在我的客厅里，通过一个标准的家庭影院系统播放数字音频和视频。

youdao

And the streaming server also has IPTV STB (set-top box) function to receive video-audio digital stream from network and play the video-audio digital stream after decoding.

该流服务器还具有IPTV机顶盒的功能，从网络上接收视音数字流解码后在电视机上播放。

youdao

They're shared as a small thank you to the Rio community for your loyalty and support to the first commercial Digital Audio Player that fought to set the legal precedents and laid the groundwork for a new market and everything that has followed.

ENGADGET: The Rio Cubic (aka the Carbon C): what could have been (part II)

The Peerless drive, for instance, which uses big cartridges that hold up to 20 gigabytes of data, might be useful for in-car digital audio players or as a removable drive for storing video in a TiVo -like TV set-top box.

FORBES: Magazine Article

Working for Bell Laboratories, Nyquist (among other things) set out theories regarding telegraph speed and transmission that would pave the way for future digital audio developments.

ENGADGET: Primed: digital audio basics Mobile