Which technology typically minimizes end-to-end delay in voice communication?

Circuit switching is the technology that typically minimizes end-to-end delay in voice communication. This method establishes a dedicated communication path between two endpoints for the duration of the call. By creating a fixed communication route, circuit switching ensures that the data packets for the voice communication can travel consistently without encountering interruptions, which typically results in lower latency.

In contrast, packet switching, which divides data into packets sent independently through the most efficient routes, can introduce varying levels of delay as packets may take different paths and arrive out of order, leading to a potential increase in overall delay during voice communications. Data compression, while helpful in reducing the bandwidth requirements, does not inherently guarantee a reduction in delay associated with transmission. A/V synchronization pertains more to aligning audio and visual media in applications rather than optimizing voice call latency.

Therefore, for applications that demand low-latency communication, such as voice calls, circuit switching is the preferred technology because of its ability to maintain a steady and immediate connection throughout the conversation.