Which component in an AV system is responsible for converting digital signals to analog?

The component responsible for converting digital signals to analog is the codec. In audio and video systems, a codec (compressor-decompressor) encodes and decodes data streams. It takes digital audio or video data and translates it into a form that can be understood by analog devices, such as speakers or monitors. When an AV system receives digital signals, the codec processes these signals, enabling their conversion into an analog format suitable for output through traditional media.

In contrast, the amplifier primarily boosts analog signals, the router facilitates the distribution of digital signals across networks, and the speaker functions as the output device that produces sound. None of those components are designed specifically to convert signals from digital to analog; that primary role belongs to the codec. Understanding the specific functions of each component is crucial for effectively managing and designing AV systems.