livebroadcast

Live broadcast refers to the real-time transmission of audio-visual content from a source to a distributed audience over a communications network, most commonly the internet. It encompasses news, sports, entertainment, education, and corporate events delivered as they happen or with minimal delay. Unlike pre-recorded video, live broadcasts emphasize immediacy, spontaneity, and ongoing audience engagement.

Technical workflow typically involves a capture device (camera, microphone), an encoder that compresses the signal, and a transport layer that carries the stream to a delivery network. Content is often ingested using protocols such as RTMP or WebRTC, transcoded for multiple quality levels, and distributed via a content delivery network to viewers across geographic regions.

Common delivery formats include HLS and DASH for adaptive streaming, and WebRTC for ultra-low latency interactions. The choice of protocol affects latency, reliability, and device compatibility. Viewers watch through a video player or app that requests the appropriate quality segment based on network conditions, often with features such as chat, captions, and overlays for interaction.

Platforms range from consumer services to professional software and hardware encoders. Software such as OBS Studio, Streamlabs, and Wirecast lets producers mix sources, add graphics, and manage scenes before sending data to a streaming service. Broadcasters may use public platforms or private infrastructure.

Use cases include live events, sports, news, education, and game streaming. Key considerations include latency, bandwidth, moderation, copyright, monetization, and accessibility features such as captions. Developments in low-latency protocols continue to reduce delays between capture and viewing.

Quality depends on resolution, frame rate, bitrate, and encoding efficiency. Viewers expect stable playback, minimal buffering, and reliable archival options. Live broadcasts are subject to regulatory and platform-specific rules regarding rights, advertising, and safety. A successful live broadcast combines reliable delivery with clear content governance and user experience.