Resolume Forum

Hi,

I am interested to know if anyone here has a better or simply different way of taking advantage of the MIDI mapping to Resolume 3.2 Layer Transport controls for creating scratching effects?
I used a Pioneer CDJ-900, MIDI-OX/MIDI Yoke, Resolume and Torq to create a little test video.
Pressing down on the CDJ jog wheel is mapped to the Transport layer pause. Spinning the CDJ
jog wheel is mapped to the Transport layer playhead slider in relative mode (63-65) with loop on. The CDJ tempo slider is mapped to Transport layer speed. I wanted the center of the CDJ tempo slider (MIDI value = 64) to be equal to a speed of 1.0 in Resolume so I had to use a MIDI-OX transform to pull that off. The audio is coming from Torq which is using the CDJ-900 in HID mode. FYI the reason I'm using Torq for audio is the goal I'm heading towards is creating a setup for DJs to mix music from my studio without even needing to be aware they are simultaneously mixing video.
I am quite happy with the results I'm getting with these mappings. The feel between the CDJ and the mapped video is quite responsive. The biggest issue I'm actually struggling with as you will be able to see from the video is the latency from the camera that is shooting the CDJ which is then being sent into Resolume.
The camera is sending the feed over firewire. I've tried the same camera feed sent S-VIDEO into a Startech USB capture cable with the same latency results. Well... any feedback would be great on either the MIDI mapping or how to deal with camera source latency.

And thank you to the Resolume devlopment team for your continued great work!

alan,

is the video recording really the issue or is the lagg happening with resolume too? How are you recording this setup? do you have two cameras?

Hi gradek.

While not relevant to this discussion I first want to correct my original post.... I am using Native Instruments "Traktor" as the DJ software not Torq.

I am using 2 cameras. I have a Sony TRV250 and a JVC Everio. For this demo, 1 camera is a source for Resolume, the other is recording the demo. The output of Resolume is going to a window which is sitting on top of the Resolume software to create the one shot for recording to a camera. I split the output screen in half between the "cars" DXV quicktime video and a camera source shot of the CDJ/my hand.
Watching the demo, the transport controls are totally in sync with the "cars" loaded into the layer as well as the audio coming from Traktor through the CDJ900 built-in sound card. All that is great. But clearly the camera source feed of the CDJ /my hand is lagging the rest of the action. For a camera source connection I have tried firewire, usb streaming, a startech svideo to usb cable that does MPEG compression in the cable, and an Osprey 100 PCI video capture card. All of them have latency issues for me. Is there always going to be some amount of discernible latency using a camera source? Any ideas on how to tackle this greatly appreciated.