Very loud! noise on start up

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Ron Aerts

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Very loud! noise on start up

PostMon Nov 30, 2020 8:03 am

When I start up DR17 (1 and 2) App, during startup I get a full load of digitally distorted jig-saw-like noise out of all my speakers. (every time it scares the hell out of me :shock: )
All my audio equipement is sync locked by a Rosendahl master clock 48kHz
I Use the MADI outputs for the 5.1 monitor speaker system
Sync to AAC Madi in is coming from a sync locked MADI device out
DR fairlight Audio interface settings shows locked 48kHz om MADI

It is only like 3 seconds during startup.
This was all fine with DR16

Any chance to fix this?

And when will the not-functioning compressors in Fairlight be fixed?
Strongbox W10 64/dual Xeon 2,6M/48-core/64Gb/dual GTX2080Ti/Fairlight Audio Accelerator
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Reynaud Venter

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Re: Very LOUD! noise on start up

PostMon Nov 30, 2020 8:15 am

is the full scale signal on outputs only on the first Resolve boot sequence or with each subsequent application start?

are you able to record the MADI outputs to illustrate?
Mac Pro 7,1 Rack • Resolve Studio 20.0 • macOS 15.5 (24F74)
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Ron Aerts

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Re: Very LOUD! noise on start up

PostMon Nov 30, 2020 9:53 am

Hi, it is only on the first boot sequence. Also after the sync/audio equipment has been shut off and on again. Audio gear is most of the time already running with other apps before init start of DR
I think it must be related to the AAC to run in sync
Strongbox W10 64/dual Xeon 2,6M/48-core/64Gb/dual GTX2080Ti/Fairlight Audio Accelerator
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Jim Simon

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Re: Very LOUD! noise on start up

PostMon Nov 30, 2020 2:46 pm

There's actually a new forum for version 17 issues.

viewforum.php?f=36
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Peter Chamberlain

Blackmagic Design

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Re: Very loud! noise on start up

PostTue Dec 01, 2020 3:24 am

Ron, we would very much like to get a way to repo this if you can provide more info
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Ron Aerts

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Re: Very loud! noise on start up

PostTue Dec 01, 2020 7:32 pm

Thanks for the response. I'm between jobs right now.
I need some time to investigate in detail. I thought it was something that could easily be recognized. I'll provide you later on with more detailed schematic and info.
Strongbox W10 64/dual Xeon 2,6M/48-core/64Gb/dual GTX2080Ti/Fairlight Audio Accelerator
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Ron Aerts

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Re: Very loud! noise on start up

PostSun Mar 07, 2021 10:01 am

Peter Chamberlain wrote:Ron, we would very much like to get a way to repo this if you can provide more info

To follow up this thread I feel obligated to share what happened since. It took a lot of effort/time so sorry for my late reaction.

There was more going on besides this described problem on my computer. There were minor (sometimes excelling to major) issues ghosting through the computer. I think it was hardware configuration related.
I'm not that expert, but I'll try to humbly explain what I have done to get this solved.
I re-configured the PCI-card layout and After a clean W10 OS install, installed 1 by 1 the PCI cards. (All 5+2 slots occupied) Every time there was an addition I carefully installed the specific drivers. The long way to figure out where things seem to go wrong.
It is a machine with 2 Xeon CPUs and the motherboard layout of the PCI slots is specific in communication from CPU to PCI-Slots. Long story short is: it is important to know where you place your video cards.
In this case, the two bulky 2 slot-wide GF2080Ti cards were (due to a physical 4-slot SLI top bridge and thermal management advantage) in slots 1 and 4 making room for my PCI SSD in slot 3.
I simply benchmarked on different slots but couldn't notice any difference. So I stuck to the 1-4 config.
In the new configuration I changed them to slots 1 and 3 and I had to "McGiver" a small wedge to create some space, preventing the fans hitting the back of a adjacent card. I left the physical SLI bridge out.
Further installed the SSD, Decklink 4k and Fairlight accelerator.
Once ready I clean-installed the W10 OS again with all the thoroughly collected proper drivers and now all is fine. Renders up to 350 fps and great performance on fusion. 64-Track multiplugin audio mixing to Dolby 5.1 as a breeze! Can't wait to get the new Fairlight Desktop Console putting to a review.
The one thing I'm not looking forward to is the heavily-background-polluting Adobe install (I need photoshop and AI :cry:)
Thanks guys for responding to this thread and if someone is having similar problems do not hesitate to contact me, maybe I can help.
Strongbox W10 64/dual Xeon 2,6M/48-core/64Gb/dual GTX2080Ti/Fairlight Audio Accelerator

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