Bridge’s AV Sync Generator represents an advancement which introduces the potential for automated correction in the future.
Bridge Technologies has unveiled an AV synchronization solution with its VB440 platform, set to be showcased at NAB 2025. This addresses one of the most persistent challenges in live production—ensuring seamless, frame-perfect audio and video alignment across multiple networks from centralised OB production points.
Traditional synchronization methods rely on manual cues or packet transport timestamps, which lack content-driven accuracy. While the VB440 has previously monitored and regulated packet-related sync issues, it now introduces a new approach by embedding synchronization data directly within the content itself. This allows for both intuitive manual alignment and UI-driven correction, with the potential for future automation through third-party integrations via Bridge’s APIs.
The VB440’s AV Sync Generator features an on-screen rolling shutter with early and late zones, along with a visual and auditory signal (“blink and beep”) to assist in manual synchronization. It also offers colour bar displays and customisable broadcaster logos on the sync screen. A key advancement is its real-time visualisation of synchronization, displaying precise time deltas between video and individual audio channels or groups. With the ability to monitor up to 64 channels per stream, including immersive audio and multiple stream groups, the VB440 provides an advanced solution for resynchronizing audio without practical channel limitations.
Unlike traditional approaches that struggle with inconsistent frame updates and unclear numerical sync errors, the VB440 delivers continuous real-time synchronization data with visual timeline coordinates and sync metrics. This ensures precise AV alignment for everyday productions—previously achievable only in high-budget broadcasts. Supporting over 40 resolutions and frame rates, including PSF, the VB440 is designed as a future-proof solution for broadcasters worldwide.
As part of the VB440 platform, this AV sync functionality is entirely browser-based, enabling up to eight simultaneous users to access it remotely from anywhere in the world. With its approach, Bridge Technologies is redefining AV synchronization, bringing greater precision and efficiency to live production workflows.
Speaking of the new development, Chairman of Bridge Technologies Simen Frostad said: “This content-based approach to AV sync is a true innovation, particularly in light of its precision and usability. The VB440 comes with an exhaustive list of tools and functionalities, all of which allow production professionals from a wide range of backgrounds and job roles to work collaboratively on remote and distributed production tasks – from camera shading to audio mixing. whilst almost completely eliminating the need for additional hardware, complex cabling, and excessive power consumption. It allows production teams to do more with less – with higher precision, quality and creativity, in a shorter time frame, and with significantly reduced complexity and environmental impact.”
He continued: “By embedding synchronisation directly into the content, Bridge Technologies is setting a new standard in live production workflows, ensuring that broadcasters can deliver perfectly synchronised audio and video without guesswork or compromise.”
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