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Blackmagic Design Mini Converter SDI to Audio 4K

BH #BLCOMCSDIA4K • MFR #CONVMCSAUD4K
18 reviews
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Blackmagic Design Mini Converter SDI to Audio 4K
Key Features
  • De-Embeds Audio from SDI Signal
  • Single Link 6G-SDI Input
  • Supports SD, HD, UHD 4K & DCI 4K Signals
  • Automatic Input Signal Detection
The Mini Converter SDI to Audio 4K from Blackmagic Design allows you to de-embed four channels of analog audio or eight channels of AES/EBU digital audio from any SDI video signal. It features a 6G-SDI input that accepts resolutions up to Ultra HD (3840x2160) and DCI 4K (4096x2160), and provides four 1/4" audio jack connectors for outputting the embedded analog or digital audio channels to an audio monitor, mixer, or other audio equipment. The SDI signal is output over a single 6G-SDI connector, with the resolution and frame rate matching that of the original input source.
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Blackmagic Design CONVMC Overview

The Mini Converter SDI to Audio 4K from Blackmagic Design allows you to de-embed four channels of analog audio or eight channels of AES/EBU digital audio from any SDI video signal. It features a 6G-SDI input that accepts resolutions up to Ultra HD (3840x2160) and DCI 4K (4096x2160), and provides four 1/4" audio jack connectors for outputting the embedded analog or digital audio channels to an audio monitor, mixer, or other audio equipment. The SDI signal is output over a single 6G-SDI connector, with the resolution and frame rate matching that of the original input source.

Using 6G-SDI technology, the Mini Converter supports UHD and DCI 4K resolutions at up to 30 fps. The Mini Converter also supports Single Link SD, HD, and 3G-SDI signals, automatically detecting and switching between the different formats. A redundant SDI input is provided as an optional back up; with the converter switching over if the main SDI input is lost.

The Mini Converter's settings are controlled using the built-in DIP switches or via USB using the included software for Max OS X or Windows computers. The USB port also enables the firmware to be updated. For powering the device, a 12VDC power supply is included with international socket adapters.

Additional Features
  • 4:2:2 and 4:4:4 sampling and color precision
  • 24-bit, 48 kHz audio sampling
  • Compliant with SMPTE 292M, SMPTE 259M, SMPTE 296M, SMPTE 372M, SMPTE 425M, SMPTE ST-2036, ITU-R BT.656 and ITU-R BT.601

Blackmagic Design CONVMC Specs

SDI Video Input
1 x SD/HD/3G/6G-SDI
1 x SD/HD/3G/6G-SDI-SDI redundant input
SDI Video Output
1 x SD/HD/3G/6G-SDI
Audio Output
4 x 1/4" jacks
4 channels of balanced analog audio, or 8 channels of AES/EBU balanced digital audio
Multi-Rate Support
Auto detection of SD, HD, 2K, UHD, and 4K signals
Reclocking
Yes
Format Support
SD:
NTSC 525/29.97 and 525/23.98
PAL 625/25

HD:
720p 59.94/60
1080i 50/59.94/60
1080PsF 23.98/24/25/29.97/30
1080p 23.98/24/25/29.97/30/50/59.94/60

2K:
2048x1080PsF 23.98/24/25
2048/1080p 23.98/24/25

UHD/4K
3840x2160p 23.98/24/25/29.97/30
4096x2160p 23.98/24/25/29.97/30
SDI Compliance
SMPTE 292M, SMPTE 259M, SMPTE 296M, SMPTE 372M, SMPTE 425M, SMPTE ST-2036, ITU-R BT.656, and ITU-R BT.601
SDI Video Rates
Switchable between SD, HD, 3G, and 6G-SDI
SDI Auto Switching
Automatically detects SD, HD, 3G, or 6G-SDI
SDI Video Sampling
4:2:2, 4:4:4
SDI Audio Sampling
24-bit, 48 kHz
SDI Color Precision
4:2:2, 4:4:4
SDI Color Space
YUV, RGB
Settings Control
DIP switches or USB software for Mac OS X and Windows
Firmware Upgradeable
Via USB 2.0
Power Supply
12 VDC
Power Consumption
8.4 W
Operational Voltage Range
12 to 31 VDC
Operating Temperature
32 to 104° F (0 to 40 ° C)
Storage Temperature
-4 to 113° F (-20 to 45 ° C)
Relative Humidity
0 to 90% non-condensing
Dimensions
4.52 x 3.63 x 0.90" (11.48 x 9.22 x 2.29 cm)
Weight
7.61 oz (215.74 g)
Packaging Info
Package Weight
1.195 lb
Box Dimensions (LxWxH)
5.8 x 5.65 x 2.6"

Blackmagic Design CONVMC Reviews

Flawless

By Joel
Rated 5 out of 5
Date: 2023-11-15

Worked as soon as I got everything plugged in, flawlessly, perfect solution!

Perfect for splitting out audio

By Tim
Rated 5 out of 5
Date: 2021-08-13

We had to break out audio to an amp while sending video to a jumbotron. This did the trick with zero latency.

See any errors on this page?

I would like to derive audio wordclock from HDMI. ...

I would like to derive audio wordclock from HDMI. My ADC will accept AES as wordclock. Can I use this with CONVMBHS24K6G "HDMI to SDI 6G Mini Converter" to embed silent audio (perhaps from unconnected analog inputs?) and then extract the silence to use as wordclock with this device?
Asked by: Miles
I'm not sure if it is necessary to feed silent audio but you certainly can. If there is no audio on an SDI track the AES audio out will be silent.
Answered by: BMD Product Specialist
Date published: 2020-05-26

can i give stereo sdi input and receive stereo ...

can i give stereo sdi input and receive stereo output?
Asked by: hareesh
That is what the converter does.
Answered by: BMD Product Specialist
Date published: 2020-09-15

question

What is the latency between the SDI video and analogue audio?
Asked by: Brandon
According to Blackmagic Design, The Mini Converter SDI to HDMI has a delay of less than a single line of video, except when it needs to convert PsF to P, which will take one frame. The Analog to SDI has a four line delay.
Answered by: Dennis A L.
Date published: 2025-08-28

I'm thinking of using this to send ATEM program au

I'm thinking of using this to send ATEM program audio back to a Blackmagic Studio 4k Pro camera, in addition to the return feed. If I plug the ATEM Switcher's return SDI into this or the even 4k version of this, will the SDI loop out be able to pass camera control, tally, reference, etc. to the camera?
Asked by: Anthony
Yes, the Blackmagic Design SDI to Audio Mini Converter will be able to pass camera control, tally, reference, etc. to the camera.
Answered by: Naftoli G
Date published: 2026-05-14

If I wanted to try and get 8 channels of analog ...

If I wanted to try and get 8 channels of analog audio embedded - would I be able to use 2 of these units in series?
Asked by: Aaron
The Blackmagic Design SDI to Audio Mini Converter is designed to de-embed audio. You would need the embedding version, which would be the Blackmagic Design Audio to SDI Mini Converter, B&H # BLCOMCAUS2.
Answered by: Elliot
Date published: 2024-08-29

What cables do I use to get the 8 channels of ...

What cables do I use to get the 8 channels of digital balanced audio out to a mixer? I don't see any 1/4" Y splits that will carry the signal to a mixer.
Asked by: Andrew
You need 4 TRS to TS or XLR, insert style cables to get out of the 4 connectors on the box to 8 inputs on a mixer.
Answered by: Anonymous
Date published: 2019-02-26

Can this ONE device be connected to one output on ...

Can this ONE device be connected to one output on an atem constellations and extract audio from 2 diff inputs?
Asked by: Gosford
Since BMD has released audio routing for some Constellation switchers, it is now possible to do this.
Answered by: Aaron
Date published: 2025-11-20

question

What is the latency between the SDI video and analogue audio?
Asked by: Brandon
According to Blackmagic Design, the Mini Converter SDI to HDMI has a delay of less than a single line of video, except when it needs to convert PsF to P, which will take one frame. The Analog to SDI has a four line delay.
Answered by: Dennis A L.
Date published: 2018-11-08
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