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Audio Crackles from FCP 7 through Kona Card
Hello,
My system was recently upgraded to FCP 7.02 from 6.05 and the Kona LHi control panel was upgraded to Version 8.0. I’m working on a Pro Res 1080i 29.97 sequence and now when I play any clips or sequences externally, the audio crackles and sometimes there are thin lines through the video on the external monitor. If I play the clips with External Video Monitoring turned off, the clips are fine, no crackling, no lines – only when playing everything externally. This is a problem because I’m going to have to output to HDCAM in a few days.
If anyone has experienced this, or has any ideas on how to fix it, I’d greatly appreciate any advice.
Thank you,
Jake
OS 10.5.8
2 x 2.66 GHZ Quad-Core Intel Xeon
8 GB 1066 MHz DDR3
FCP 7.02
Quicktime 7.6.6 -
29 Replies
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[Jake Diamond] “and the Kona LHi control panel was upgraded to Version 8.0”
Did you uninstall the older drivers before installing the new ones?
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Jeremy,
I don’t know – someone else did the upgrade. Is there a way I can check?
Thanks,
Jake
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[Jake Diamond] “I don’t know – someone else did the upgrade. Is there a way I can check? “
Do another uninstall and reinstall.
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OK, thank you!
Jake
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[Jeremy Garchow] “Did you uninstall the older drivers before installing the new ones?”
AND did you update the firmware manually? it is not an automatic process.
gary adcock
Studio37Post and Production Workflow Consultant
Production and Post Stereographer
Technology Development
Quality Assurance AssistanceChicago, IL
https://blogs.creativecow.net/24640
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Gary,
Sorry – I should have done more research before asking – I don’t know the answer to this either as it was done over the weekend and I have no idea what they exactly did. I will find out to gather more data.
Thank you,
Jake
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I had this problem a while back, the audio not the video, with my Kona3. It was suggested that I route all the computer audio to the Kona. This stopped the crackles for me. Have not seen a negative side effect. I turn off the annoying alert sounds anyway but that is a must or else the bonk will make you jump out of your seat.
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Thanks Michael. I tried this and it fixed it in some places, but not all. It seems pretty random.
Jake
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Hi guys
I have the same problem with fcp 7.0.2, osx 10.6.3 and kona LHi 8.0 on an octo, 16GB Ram. It’s a brand new system so the kona never was on a previous version. Everything is up to date.
I tried the 8.0 NDD but it still has the same problem.
I will try to downgrade the control panel and the firmware. Hope it’ll help.Please let me know if you have any other suggestions.
Thanks
OlivierEdit: ooh and I tried Michael’s suggestion to route the system audio to the kona. It did not fix the problem.
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What is your “Ref In” set to? Do you have a stable BB or tri-level sync?
Michael Gossen
Helium Digital Media
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