The Cobalt Digital 9321 is a professional broadcast-grade audio embedder card designed for integration within the openGear modular frame system. Its primary function is to take discrete, external audio inputs—typically analog or AES/EBU digital audio—and seamlessly embed them into the digital audio slots of an incoming HD-SDI or SD-SDI video signal. This process is fundamental in broadcast and production workflows where audio from separate microphones, mixing consoles, or playback servers needs to be combined with a video feed for recording, distribution, or transmission. The 9321 is engineered for reliability and precision, ensuring perfect audio-video synchronization (lip-sync) and maintaining the highest audio quality throughout the embedding process.

This module offers flexible audio input options, commonly supporting both analog balanced audio (on XLR connectors) and AES/EBU digital audio. It allows the user to select which audio channels to embed and to precisely map them to specific pairs (e.g., Channels 1 & 2, 3 & 4, etc.) within the SDI stream's embedded audio space. The card features comprehensive level control, including adjustable gain for analog inputs and peak audio metering, enabling broadcast engineers to set optimal levels and prevent clipping. As a true openGear card, it provides extensive remote management and monitoring capabilities via the frame's Dashboard software, allowing for configuration changes, status checks, and control from a centralized location.

Housed in a single-slot openGear card, the 9321 is built for high-density, rack-mounted installations in broadcast facilities, mobile production trucks, and post-production houses. It draws power and communicates through the openGear frame's backplane. By providing a robust, configurable, and easily managed solution for combining high-quality audio with SDI video, the Cobalt 9321 HD/SD Embedder is a critical tool for ensuring broadcast-ready signal integrity and streamlining complex audio-for-video workflows.