AJA ROI-DVI DVI/HDMI to 3G-SDI Mini-Converter with ROI Scaling

The AJA ROI-DVI DVI/HDMI to 3G-SDI Mini-Converter facilitates the seamless integration of computer-generated video signals into professional broadcast and production environments. This high-performance hardware solution converts DVI or HDMI inputs into 3G-SDI outputs, offering advanced scaling, frame rate conversion, and aspect ratio management within a compact, portable form factor.

Precise Region of Interest (ROI) Scaling

The AJA ROI-DVI provides exceptional control over computer signal processing through its dedicated Region of Interest (ROI) functionality. This feature allows users to select a specific portion of the DVI input signal and scale it to the desired SDI output resolution. The hardware-based scaling engine ensures high-quality image reproduction without the artifacts typically associated with software-based cropping, making it an essential tool for live broadcasts, presentations, and digital signage.

Professional Signal Conversion and Connectivity

This mini-converter supports a wide range of VESA resolutions and frame rates, ensuring compatibility with various computer sources and professional video standards. The unit includes a DVI-D loop-through output, which maintains a local monitor connection while simultaneously delivering the converted signal to the SDI infrastructure. This dual-output capability eliminates the need for external distribution amplifiers in most monitoring setups.

Integrated Audio and Synchronization

The AJA ROI-DVI manages audio embedding with precision to ensure perfectly synchronized delivery across the production chain. The device supports 2-channel analog audio input via a 3.5mm jack or 8-channel embedded HDMI audio. Users can map these audio sources directly into the 3G-SDI output stream, providing a complete video and audio solution for professional workflows.

Performance-Focused Features and Benefits

• High-Quality Scaling: Utilizes professional-grade algorithms to maintain image clarity when resizing computer signals to broadcast standards.
• Aspect Ratio Conversion: Provides full control over output formats, including letterboxing and anamorphic stretching to match specific display requirements.
• Frame Rate Management: Synchronizes mismatched computer and broadcast frame rates for flicker-free video output.
• DVI-D Loop-Through: Enables local monitoring of the source signal without interrupting the conversion process.
• Robust Build Quality: Features a compact, durable aluminum housing suitable for both studio and field environments.

User-Friendly Configuration and Control

Configuration of the AJA ROI-DVI occurs through the AJA Mini-Config software via a USB connection. This intuitive interface provides a visual representation of the input and output signals, allowing for precise adjustments to cropping, scaling, and signal parameters. The software-driven approach ensures that the converter remains versatile and easily adaptable to changing production needs.

Applications and Use Cases

The AJA ROI-DVI is engineered for diverse professional applications, including:

• Broadcast Production: Integrating computer screens, web browsers, or software interfaces into live television segments.
• Live Events: Scaling presentation slides or social media feeds for large-scale LED walls and SDI switchers.
• Education and Training: Capturing high-resolution software demonstrations for recording and streaming via professional SDI capture cards.
• Corporate AV: Converting laptop outputs for long-distance transmission over SDI cabling in conference centers.

Package Contents

• AJA ROI-DVI Mini-Converter
• 5V Power Supply
• USB 2.0 Cable (for configuration via AJA Mini-Config software)