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DeckLink Extreme HD-SDI capture problems with HD-Connect SI
First, here is my setup :
Mac Pro Quad with 2 Gb RAM
MacOS X 10.4.10
Sony HVR-M25U
Blackmagic Decklink Extreme with latest drivers (v6.3)
HD-Connect SI with the latest firmware (v1.1.6)I have some issues capturing HDV –> HD-SDI with the Convergent Design HD-Connect SI. When I capture clips that I’ve just logged, sometimes the video signal flashes with black video many times, even after pre-roll time causing the captured video having blinking black video sometimes as long as 10 seconds after clip start.
What causes that? BM drivers? Firmware?
Everything is OK when I capture straight HDV through firewire, but when I switch to HD-SDI capture through the DeckLink and HD-Connect SI (DVCPRO-HD or Motion-JPEG) this happens.
Any advice would be welcomed, thank you.
Joel
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2 Replies
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I just tried to capture the same clips I was having troubles with on a different setup : BM drivers 5.9.2, MacOS X 10.4.8, same HD-Connect SI & Sony deck (all tests done with Final Cut Pro 5.1.4 on both systems). Source tapes are 63min Sony mini-HDV tapes (not the DigitalMaster type).
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I solved the problem which was caused by the “Audio Input Present” checkbox being checked on the HD-Connect SI controller.
Quote from John from Convergent Design :
“The issue you are likely having deals with the audio in the HDV stream. The HD-Connect SI is setup to look for silent audio in order to fix an issue with JVC equipment. The result is that if a tape has silent audio, the video will blink.
To turn this off, install the controller application for the HD-Connect SI available on our website on the HD-Connect SI page. Connect your SI to your computer via 1394 and start the controller application. Click open and then uncheck Audio Input Present. This should fix your blinking video issue.”Joel
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