A c_ _ _ _ is a device or computer program for encoding or decoding a digital data stream or signal.

(a)  

MCU is a device commonly used to bridge v_ _ _ _ c_ _ _ _ _ _ _ _ _ _ _ connections.

(a)  

We offer affordable microphones for a_ _ _ _ i_ _ _ _ and superior webcams for video input.

(a)  

When giving presentation, you should make e_ _ c_ _ _ _ _ _ with the audience.

(a)  

The speaker usually s_ _ _ _ _ _ _ _ _ the main ideas at the end of the workshop.

(a)  

Over three hundred a_ _ _ _ _ _ _ _ came to the workshop about artificial intelligence this morning.

(a)  

A c_ _ _ r_ _ _ is a web site or computer program that allows people to send messages to each other instantly over the Internet.

(a)  

B_ _ _ _ _ _ _ _ is a measurement of the amount of information that a particular computer network or Internet connection can send in a particular time. It is often measured in bits per second.

(a)  

M_ _ _ _ _ _ _ _ _ v_ _ _ _ c_ _ _ _ _ _ _ _ _ _ involve situations where videoconferencing equipment and systems are set up to serve more than two locations.

(a)  

E_ _ _ c_ _ _ _ _ _ _ _ _ _ _ is a method used in telephony and telecommunication to improve voice quality by preventing echoes from being created or removing it after it is already present.

(a)  

I’d like to buy the best equipment for our conferencing room, but it depends on our b_ _ _ _ _.

(a)  

“P_ _ _ _ _ _ your voice” means you should speak loudly so that anyone can hear you from the distance.

(a)  

B_ _ _ l_ _ _ _ _ _ _ is the way of nonverbal communication through gestures and movements, without words.

(a)  

We need to set up a d_ _ _ _ _ _ _ _ s_ _ _ _ _ to hold video conferences with people from more than two locations.

(a)