Datavideo DAC-91 3Gbps/HD/SD Analogue Audio embedder

Datavideo DAC-91 — SDI Audio Embedder with Auto Detection for SD, HD and 3G

The Datavideo DAC-91 is an SDI audio embedder that automatically detects SD, HD and 3G signals and embeds analogue audio into an SDI video output. It supports up to 1080p/60 video formats and switches automatically between different SDI standards. The unit gives you flexible analogue inputs and simple audio level control for live and recorded workflows.

Key features

• Auto detection: Automatically detects SD, HD and 3G SDI signals and sets compatible formats for embedding.
• Embed analogue audio: Allows users to embed 2 channels of analogue audio into the SDI video signal.
• Supports up to 1080p/60: Compatible with common HD and 3G SDI formats up to 1080p/60.
• Audio standards: Supports both SMPTE and EBU audio standards.
• Visual monitoring: Provides an audio level indicator display to monitor levels at a glance.

Inputs and audio control

The DAC-91 offers four analogue audio inputs and dedicated connectors to match professional and consumer gear. It provides two mini XLR inputs and two RCA inputs, enabling flexible source connections. Although the device embeds 2 channels into the SDI output, it accepts multiple analogue inputs so you can choose or switch sources as needed.

For level control, the unit includes audio level adjustment. You can adjust the audio levels via built-in DIP switches, giving a tactile way to set input levels without menus. Additionally, the audio level indicator display helps you confirm levels during setup and operation.

Build quality and reliability

The DAC series uses an aluminium alloy, rugged metal housing designed for durability. The heavy-duty design provides low heat dissipation and is suitable for long-hour operation in normally ventilated environments. This makes the unit appropriate for field and studio use where reliability matters.

What’s in the box

• 1 x DAC-91 product
• 1 x AD Switch DC 12V
• 2 x Mini XLR to female XLR cable

Technical specifications

Smart FAQ

Question: Can the DAC-91 automatically switch between SD, HD and 3G signals?
Answer: Yes. The unit auto-detects SD, HD and 3G SDI signals and automatically sets compatible formats for embedding external audio into the SDI output.

Question: How many analogue channels can I embed into the SDI output?
Answer: The DAC-91 embeds 2 channels of analogue audio into the SDI signal. It also offers four analogue inputs (mini XLR x2 and RCA x2) so you can connect multiple sources and select the appropriate inputs.

Question: Does the unit provide level metering and adjustment?
Answer: Yes. The product features an audio level indicator display for visual metering and allows audio level adjustment using the built-in DIP switches.

Question: Is the DAC-91 suitable for extended operation in studio or field use?
Answer: The DAC series uses a rugged aluminium alloy housing that provides low heat dissipation, making it suitable for long-hour operation in normally ventilated environments.

Question: What comes in the box with the DAC-91?
Answer: The package includes the DAC-91 unit, an AD Switch DC 12V power adapter, and two mini XLR to female XLR cables to get you started immediately.