Start by matching each device’s connections and signal requirements, such as HDMI video, Toslink or coaxial digital audio, RCA or 3.5 mm analog audio, microphone type and wireless frequency band. For integrated systems, confirm that media-over-IP components fit the network and control design, including the required switch, controller, IR, RS-232, CEC, or IP control method, and check that audio formats and downmixing options suit the connected speakers and displays.

When installing audio video equipment over an IP network, plan for compatible transmitters, receivers, a controller, and a Layer 2 or higher Power over Ethernet (PoE) switch, while accounting for video resolution, network capacity, and the number of sources and displays. Consider audio format support, downmixing, lip-sync adjustment, and control methods such as IR, RS-232, and CEC so the system fits the listening zones and display types in the project.

Use a digital-to-analog converter when a digital audio source, such as a Toslink or coaxial connection, needs to feed analog equipment through RCA or 3.5 mm inputs. Use an audio extractor when an HDMI system needs to separate audio from video and send it to digital outputs, analog outputs, or both, such as when connecting a display source to a separate audio system.

When selecting audio video equipment, compare connection types, supported audio and video formats, resolution, latency, signal-conversion options, and compatibility with the displays, microphones, speakers, and control systems in the installation. For wireless equipment, also evaluate operating range, frequency management, channel capacity, battery or charging needs, and interference handling, while wired systems may require closer attention to cable paths, connector types, signal distribution, and installation distance.