Need Help with Live Video Installation/ signal distribution /gear

[demoboy]

My mate is purchasing TV screens (x4) for his club, mainly the smoking section (since smoking inside is prohibited). The smoking section is basically open rooftop. He wants to show the bands play in all locations of the venue. He also wants to invest in the video gear as well. I’ve been thinking of those cost effective 4K camcorders with SDI out. Two cams will do. Mid level balcony shot towards the stage. Looking for a cheap video mixer too. Something 2-4 signals. I peaked at the new BM ATEM minis but those are computer dependent. I prefer standalone minor effects, though effects aren’t essential. I’ll need to be able to shoot the signal to the TVs. So we’ll need a relay splitter, distributor box. Any help or website how to go about this? Thanks

 

[paulears]

The Mini is a winner really, giving you the option to spend more - but I'd question 4K. Why the expense of 4K cameras if it's just internal distribution. The real killer of these installations is HDMI latency. The splitters and distribution all have processing delay and nothing annoys me more than the video running a few frames behind. Will he have a video tech? SDI is a good move, but this puts the switcher up in price, of course. I see it done badly all the time. One, a very expensive venue have spent huge sums on massive LED screens, line arrays, expensive audio, lighting and stage fit. The guy who does video has two cameras on the balcony in front of him that he can point while switching video, plus a few fixed cameras. His operation style is lurch from one shot to the next, and then ignore the video screens with pictures of the keyboard player with his hands totally out of sync with what we can hear, let alone the singers. Serial video works better than HDMI.

Seems a lot of money people are spending to get very average results.

 

[Razz16mm]

Depends on how you distribute video to the displays. SDI base band is definitely preferable way to go for low latency since you won't need hyper expensive cabling or extenders to distribute the signal, though you will need SDI-HDMI converters at the TV's.
There is always going to be some latency and difference in audio/video delays unless you take a mix off the house console and imbed it in the video via the production switcher for distribution. If the sound is distributed directly through the house sound system to remote locations, audio will always lead video by at least a couple of frames unless there is a DSP in the audio chain that has programmable delays on remote distribution outputs. Minimum video delay you can expect through most cheap switchers is one to two frames.
Unless you have live camera ops, you might want to consider some relatively low cost PTZ robotic cameras made for event venues. Not sure 4k is worth the extra expense for this. Roland makes some decent cheap switchers.

https://www.youtube.com/watch?v=SSUAHIQ2euk

https://proav.roland.com/global/products/v-1sdi/

https://www.bhphotovideo.com/c/sear...cs,e&msclkid=1f547bb017c01ba8b692258c8edb31b7

1x4 SDI DA with imbedded audio support.
https://www.bhphotovideo.com/c/prod..._SDI_Distribution_Amplifier.html?sts=pi&pim=Y

 

[demoboy]

The Mini is a winner really, giving you the option to spend more - but I'd question 4K. Why the expense of 4K cameras if it's just internal distribution. The real killer of these installations is HDMI latency. The splitters and distribution all have processing delay and nothing annoys me more than the video running a few frames behind. Will he have a video tech? SDI is a good move, but this puts the switcher up in price, of course. I see it done badly all the time. One, a very expensive venue have spent huge sums on massive LED screens, line arrays, expensive audio, lighting and stage fit. The guy who does video has two cameras on the balcony in front of him that he can point while switching video, plus a few fixed cameras. His operation style is lurch from one shot to the next, and then ignore the video screens with pictures of the keyboard player with his hands totally out of sync with what we can hear, let alone the singers. Serial video works better than HDMI.

Seems a lot of money people are spending to get very average results.

Depends on how you distribute video to the displays. SDI base band is definitely preferable way to go for low latency since you won't need hyper expensive cabling or extenders to distribute the signal, though you will need SDI-HDMI converters at the TV's.
There is always going to be some latency and difference in audio/video delays unless you take a mix off the house console and imbed it in the video via the production switcher for distribution. If the sound is distributed directly through the house sound system to remote locations, audio will always lead video by at least a couple of frames unless there is a DSP in the audio chain that has programmable delays on remote distribution outputs. Minimum video delay you can expect through most cheap switchers is one to two frames.
Unless you have live camera ops, you might want to consider some relatively low cost PTZ robotic cameras made for event venues. Not sure 4k is worth the extra expense for this. Roland makes some decent cheap switchers.

https://www.youtube.com/watch?v=SSUAHIQ2euk

https://proav.roland.com/global/products/v-1sdi/

https://www.bhphotovideo.com/c/sear...cs,e&msclkid=1f547bb017c01ba8b692258c8edb31b7

1x4 SDI DA with imbedded audio support.
https://www.bhphotovideo.com/c/prod..._SDI_Distribution_Amplifier.html?sts=pi&pim=Y

Thank you very much for the responses.

I take it most TV screens today are all 4K standardized at fair prices, at least old panel technologies that aren't OLED etc... plus we want 50+ inch screens. I wouldnt worry about the cost tbh, the venue makes good revenue as there are at least 2 main events each week, plus it's all also restaurant. It's a huge facility. The main live room is about 150 ft by 100 ft. And the outrance is a huge long space for smoking and additional bars. I mean really long room. About 30ft by 200ft. There's no way around latency then correct? Meaning 2-3 frames off? The stage sound is relayed to the smoking lounge room so it's still loud. How awkward is the frame latency hearing the sound live vs seeing the video feed? I appreciate the responses.