Hello. I´m getting noisy picture when recording. I have two cameras, SONY HXR-MC2500. I also record directly to the cameras internal hard drive and the clips from the camera have amazing quality with no noise what so ever. But the final video from vMix shows noise especially from the darker parts.

I´m using the following stuff:
HDMI input - good quality HDMI cables that supports 4k and 3D support with signal booster.
Intensity pro 4k for capturing.
In vMix the size is 1920x1080 and output is 50p Decklink JPEG Compressor.
File format is AVI.
Compression quality is automaticly set to 80 %.
The CPU is 10-12 % when recording.
My computer is i7 4 Ghz with good graphic card and a lot of hard drive memory and 16 gb of ram.

So what am I doing wrong? I had no noise a few weeks ago.

Also I have another problem. vMix crashes after 2-3 minutes of use and I have to reinstall it to prevent the crash. This did not happen earlier.

Please help!