You need to use a microphone to record the sound of eating at a suitable distance from your mouth.

The food anchor recorded a clear sound, but the radio with a microphone was not visible in the video. In fact, a microphone with long-distance pickup and sound card processing are used to get clear sound. Generally, everyone knows that there is a dynamic microphone and a capacitive microphone, which are the two major categories of microphones. In fact, there is another microphone called an interface microphone. Generally used in video conference scenes, the sound performance is very good.

word source of eating broadcast:

"eating broadcast" is a kind of "food reality show" program that rose on the Korean network from the end of 214 to the beginning of 215. Specifically, it is to sit in front of the webcam at home and broadcast the process of eating to netizens live, relying on the popularity of "eating" to get a reward.

There are three main reasons for the popularity of eating and broadcasting: "high face value", "big appetite" and "eating is not fat". Eating and broadcasting, which makes money every day, is far from being as profitable as it looks. It requires not only hard training the day after tomorrow, but also talent. I'm afraid most people can't do it no matter how hard they try.