Playback

Playback refers to the reproduction of previously recorded media or events. The term is used across entertainment, computing, sports, and research to describe presenting content that has been captured, stored, or prepared for later viewing or listening.

In media technology, playback is the function of hardware and software that decodes and renders audio, video, or data streams for display or listening. Successful playback depends on compatible codecs and containers, appropriate sampling and frame rates, synchronization between audio and video, buffering, and, for protected content, licensing and digital rights management.

In audio production and music technology, playback describes the output of a project timeline from software such as a digital audio workstation, where playing begins playback of tracks, loops, and effects. In live settings, playback often involves pre-recorded backing tracks or click tracks to accompany performers and maintain tempo.

In film, television, and theatre, playback can refer to monitoring takes during production or to the use of pre-recorded material during a performance. Playback equipment and timecode-based systems are common on set to aid reference, synchronization, and continuity.

In sports and research, video playback or instant replay is used to review decisions or outcomes. In experimental settings, playback may involve presenting stimuli or replaying recorded data for analysis. Across domains, issues such as file compatibility, latency, and licensing influence the effectiveness and legality of playback.