You should have learned the main audio connectors, which are Jack, RCA, and XLR. The important cables for a streaming session are: RCA to 3.5 mm minijack - a cable which is always good to have.

The analog mixers are also introduced. Here it devides into two main directions: DJ mixers and small audio mixing desks. By plugging in the main audio sources into the mixer you can choose which audio is send to the computer.

The sound card as main computer audio connector is also introduced in this chapter and also you should have learned how to control the computer internal mixer - with all three often used operating systems.

A special part is also about linux audio concepts. Here the main directions (OSS and ALSA) are introduced.