Correspondingly, the higher the network bandwidth, the more data can be transmitted per unit of time. If the road is too narrow and too many vehicles need to pass side by side, it may lead to traffic congestion or even car accidents. The wider the road, the more vehicles are allowed to pass side by side, and the greater its transport capacity is. If the network is compared to an expressway, bandwidth is like the width of the road, and audio and video data are the vehicles traveling on the road. Bandwidth can be divided into upstream bandwidth and downstream bandwidth, which correspond to stream publishing (upload) and stream pulling (download), respectively. It indicates the maximum amount of data that can be transmitted over a network connection in 1 second and is usually measured in bits per second (bps). To make good use of this transmission tool, we must pay attention to network bandwidth.īandwidth is familiar to netizens. To share audio and video data to every corner of the world in real time, one transmission tool is required, that is, network. Necessity of audio encoding and compression Before you want to share sound signals with others, pay attention to audio ending and decoding. After being processed by the audio pre-processing module, sound signals are purified. In the previous lesson, we learned about the three A’s for audio pre-processing. Advanced Audio and Video Development - Lesson 4: Necessity and Format Selection of Audio Encoding and Decoding

What is encoding in education