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Small black metal box with quarter-inch audio jacks and BNC connectors

Blackmagic Design Pty. Ltd.

Blackmagic Design Pty. Ltd. CONVMCAUDS4K Audio to SDI 4K Media Converter

SKU CH-EWNF-YVB6H MPN CONVMCAUDS4K

Embeds four analog or eight digital audio channels into SD, HD, 3G or 6G-SDI video up to 4K with automatic format detection and reclocking

  • Power draw8.4 W
  • Conversion typeAudio to SDI 4K
  • Product formatSDI Format Support: 525/29.97 NTSC, 525/23.98 NTSC, 625/25 P
  • Interface typeSMPTE 292M, SMPTE 259M, SMPTE 296M, SMPTE 372M, SMPTE 424M-B
  • Video sampling4:2:2, 4:4:4
  • Audio formatsTelevision standard sample rate of 48 kHz and 24 bit.
  • Embed 4 analog or 8 digital audio channels into SDI video
  • Redundant SDI input switches automatically if main signal fails
  • Supports SD through 6G-SDI and 4K UHD formats automatically
  • 48 kHz 24-bit audio sampling meets broadcast standards
  • USB port enables configuration and firmware updates on Mac or Windows

Mini Converter Audio to SDI 4K

Blackmagic Design Mini Converter Audio to SDI 4K embeds four channels of balanced analog audio or eight channels of AES/EBU digital audio into SD, HD, 3G or 6G-SDI video signals. It supports formats from 525i NTSC up to 4096 x 2160p30 4K. A universal 12 V power supply with international adapters is included.

Broadcast engineers embedding external audio

Suits broadcast engineers who need to embed analog or AES/EBU sources into an SDI stream for live production or post workflows. Not for buyers who require HDMI input or output, or who need to de-embed audio from an SDI signal.

6G-SDI reclocked output with redundant input

The single specification that decides fit is the 6G-SDI reclocked output with automatic redundant-input failover. It ensures clean 4K transport and signal continuity when the primary SDI feed is lost.

How it compares

Measured against everything we stock in Video & Signal Converters, at today’s prices. Recalculated every night.

Price $242.99
Pricier than about 87% of the 286 comparable items (median $27.99).

Specifications

Product
Brand nameBlackmagic Design
Model nameCONVMCAUDS4K
Conversion typeAudio to SDI 4K
Product colorSDI Color Precision: 4:2:2, 4:4:4
SDI Color Space: YUV, RGB
Audio & video
Audio formatsTelevision standard sample rate of 48 kHz and 24 bit.
Digital audio8 channels of professional balanced digital with standard 1/4 in jack connections.
Audio connection4 channels of professional balanced analog audio with standard 1/4 in jack connections.
Ports & slots
Interface typeSMPTE 292M, SMPTE 259M, SMPTE 296M, SMPTE 372M, SMPTE 424M-B, SMPTE 425M, ITU-R BT.656, ITU-R BT.601, SMPTE ST-2036
USB connectionUpdates and Configuration: USB
Additional connectorMulti Rate Support: Auto detection of 4K, UHD, 2K, HD or SD-SDI inputs.
Reclocking: Yes
Power
Power draw8.4 W
Power supply+12 V universal power supply included with international socket adapters for all countries. Cable tie point.
Operational Voltage Range: 12 V - 31 V DC
Size & build
Product dimensions4.52 in × 3.63 in × 0.9 in
Product weight7.61 oz
Shipping weight0.45 kg
Package size152 × 127 × 51 mm
In the box
Included itemsMini Converter Audio to SDI 4K
12 V universal power supply with international socket adapters
More details
Product formatSDI Format Support: 525/29.97 NTSC, 525/23.98 NTSC, 625/25 PAL, 720p50, 720p59.94, 720p60, 1080i50, 1080i59.94, 1080i60, 1080p23.98, 1080PsF23.98, 1080p24, 1080PsF24, 1080p25, 1080PsF25, 1080p29.97, 1080PsF29.97, 1080p30 and 1080PsF30, 1080p50, 1080p59.94, 1080p60, 2048 × 1080p23.98, 2048 × 1080p24, 2048 × 1080p25, 2048 × 1080PsF23.98, 2048 × 1080PsF24,2048 × 1080PsF25, 3840 × 2160p23.98, 3840 × 2160p24, 3840 × 2160p25, 3840 × 2160p29.97, 3840 × 2160p30, 4096 × 2160p23.98, 4096 × 2160p24, 4096 × 2160p25, 4096 × 2160p29.97, 4096 × 2160p30.
Video sampling4:2:2, 4:4:4

Questions about this item

How do I connect analog audio to the 1/4 inch jacks and avoid the common mistake of unbalanced cables?

Plug four channels of professional balanced analog audio into the standard 1/4 inch jack connections; the mistake is using unbalanced cables which can introduce noise and ground loops in studio environments.

Will the USB port need firmware updates over time and how are they applied?

The USB port is used for software upgrades and configuration via the included updater application on Mac OS X 10.9 or later and Windows 7 or 8; connect to a computer to apply updates when released.

At what point does the 8.40 Watt power draw become a thermal limit during continuous 4K operation?

The converter consumes 8.40 Watts and operates from 12V to 31V DC with the supplied universal power supply; sustained 4K embedding runs within this envelope without a stated thermal throttle point.

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