The Blackmagic Design OpenGear Audio to SDI Converter is a professional broadcast module designed to embed high-quality analog and digital audio into an SDI video signal within a modular openGear frame system. This card addresses a fundamental need in broadcast and production workflows where standalone audio sources—such as microphone mixes, audio consoles, or music playback systems—must be combined with a video feed for distribution, recording, or transmission. The converter takes in a clean SDI video reference signal and up to 16 channels of audio from its various input ports, synchronizes them, and outputs a new SDI stream with the audio perfectly embedded. This process creates a fully self-contained broadcast feed, simplifying signal routing by eliminating the need for separate audio and video cables downstream.

Installed in a single slot of a compatible openGear frame, the module leverages the frame's centralized power, cooling, and control for reliable, 24/7 operation. It typically supports a versatile array of audio inputs, including analog XLR connections for microphones or line-level sources and AES/EBU digital audio inputs for pristine digital embedding. Advanced processing ensures perfect lip-sync alignment between the video and embedded audio channels, which is critical for broadcast. Users can typically mix, route, and assign different audio sources to specific channels within the SDI output's audio embedder, providing flexibility for complex audio workflows such as carrying multiple language tracks or separate commentator feeds.

As part of the openGear ecosystem, this converter can be remotely monitored and configured via frame management software, allowing broadcast engineers to adjust levels and settings from a central location. Its modular design allows multiple units to be densely packed within a frame, enabling a facility to embed audio for numerous video feeds in an organized, rack-optimized manner. By providing a dedicated, high-fidelity hardware solution for audio embedding, this OpenGear card ensures broadcast-quality audio-video integration, replacing less stable software-based methods or an array of standalone embedders, and is essential for master control, production, and distribution areas in modern broadcast facilities.