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5.1/7.1 monitoring over SDI

PostPosted: Mon Feb 03, 2020 9:10 am
by Robin Erard
Hello Blackmagic engineers,

I propose you to develop something that doesn't exist :

A 5.1/7.1 studio monitoring.

- Input SDI (with embedded audio)
- 8x XLR / Jack Output > to go on speakers
- SDI loop out / or SDI & HDMI loop out

For know, it's a nightmare to find something to de-embed audio from SDI for a correct price. Of course your mini converter does it, but only with 4 channels in Analog. And once the sound is deembedded, it needs to enter in a 5.1 monitoring system. All this could be simplified with a single SDI-monitoring system.

Best

Robin

Re: 5.1/7.1 monitoring over SDI

PostPosted: Fri Apr 23, 2021 10:53 am
by mwjburton
I 100% second this. We use an SPL 5.1 Monitor Controller and currently having to take 4 CH from the DNxIQ box and 2 CH from a Blackmagic SDI to Audio de-embed. There is an ever so slight difference in sync for the de-embedded channels, so those are for Ls and Rs.

A new, fairly simple IO box as described would be amazing. Personally would like to see:

- Thunderbolt 3
- SDI Out x 2
- HMDI Out x 1
- 25 pin Analogue Audio Output (8 CH minimum)
- Headphone Jack on front
- Mic Input on front
- Very quiet fan and an enclosure that doesn't suffer the same noisy fate as the AJA units.

Please!!

Re: 5.1/7.1 monitoring over SDI

PostPosted: Fri Apr 23, 2021 4:30 pm
by Howard Roll
Here you go, this little guy will open up 8ch AES or 16ch analog for less than a G.

https://www.apantac.com/products/crescent/SDI-DE

apantac.jpg
apantac.jpg (36.89 KiB) Viewed 918 times


Good Luck

Re: 5.1/7.1 monitoring over SDI

PostPosted: Mon Apr 26, 2021 7:12 am
by mwjburton
Thanks Howard. I've come across this below. Have you used one?

I still think its worth BMD catering for 5.1 and 7.1 monitoring directly with their breakouts.

The UltraStudio 4K Mini with a 25 pin audio breakdown cable would be perfect.

Re: 5.1/7.1 monitoring over SDI

PostPosted: Mon Apr 26, 2021 4:50 pm
by Andrew Kolakowski
No idea why today de-embedding audio from SDI need to cost a lot. Use to be crazy expensive for what reason? SDI is a format which is all about syncing/timings etc. so de-embedding audio only should be very easy. What are technical issues which make those products so expensive?