Low latency capture card
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Hmmmm interesting! Thanks for the update!
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Just sharing my own experience :
I've just bought an Intensity Shuttle USB3 and it works on my mid 2012 (non retina) MBP on OSX 10.8.5.But I had to test every single input settings before to find which one was the good for my GH3 and my Gopro (so if you have a black screen while trying to input video from this card, just test other input settings).I was thinking it would discover itself what are the right ones... (like my TV do...)And I can't input signal at 1080/25p (I had to change my GoPro record settings to 24p...).I hope that BlackMagic will fix that in their next driver release... -
I had to search right settings too.
And it seems deinterlacing doesnt work.. for the moment I hope. -
I wonder how you Gopro works. I have stayed away from using it for live and not testing actually. Do you go HDMI out and do you get clean frame without any icons? I have HD2 sitting araound that I do not use much, but for live there would be a life for it. -
@vanakuru
I did a quick test with my Gopro HD Hero 3 black HDMI out yesterday and it seems to work !To remove icons, I had just to set OSD option to Off. And for the settings, I selected 1080/24p on GoPro and Intensity shuttle.If you can't make it work clean, just tell me and I'll give another try. -
OK! I got the mini(micro) HDMI adapter and was able to hook my idle GoProHD2 to Matrox MXO2. Great quality 1080p PAL 25fps. I have a project requiring closeup lens camera and this is absolutely perfect. Now when new HD3 is about to come out I see HD2s selling for 100EUR. It would be great camera for live capture - latency with MXO2 is about 1/3 of a sec, picture is very good on daylight and not too bad with poor lighting(gets grainy) and as a great bonus you can record what the camera sees while broadcasting live. Powering via USB mini connection works fine. And it is a small camera.
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The Hero3 black edition is far more expensive, but really better in low light conditions if you need to use it on stage.
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I have a LFG4 installed in my MacPro with 2.8Ghz quadCore Xeon, 20GB Ram and dual ATI Radeon HD5770
I am capturing two NTSC streams at half res from the live IMAG cameras, and compositing them with my video content picture in picture style. I am running at full 30fps but there is still a substantial amount of latency and "lip sync" issues with the audio which runs straight through FOH console. Are there any ways I could optimize my system or Isadora to reduce latency? -
You'll always have more or less latency.
Maybe you could add a delay to your audio to resync audio and video.. !Best
Philippe -
Adding a delay to the audio isn't an option for us. I can accept some latency, but I do need to improve it. What are some parameters that affect latency that I can check out?
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Adding a delay to the audio isn't an option for us. I can accept some latency, but I do need to improve it. What are some parameters that affect latency that I can check out?
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Sorry, I don't have clear answer about that.
Try to tweak a right balance between resolution-codec-quality in the live capture settings box...regards
Philippe -
@josua have you got any effects on the video?
