Video from an audio perspective

I have been working with an audio guy lately on a mobile video fly pack. In the process I have used what I know about audio to describe gear needed in an IMAG system. This got me thinking, most churches start off with audio and move to video, because of this a lot of audio engineers are left with the task of putting together an IMAG system, so i decided to share some of my analogies to help audio professionals understand video gear better. The comparisons are not perfect, nor am I an audio guy, so feel free to correct me if I’m wrong, but this could be fun, some of them are a bit of a stretch but go with it.

Gear comparisons:
Video switcher
: similar to an audio console, main hub, everything goes in and it has a master out
Cameras: are like preamps, as preamps affect the sound and gives the mix a certain flavor, so do different cameras. They give different images and looks to the video.
Lenses: are like microphones, different lenses are used to pick up different images, camera placements require different lenses to get that look you want.
Projectors: are like speakers, they affect the look of the video and the room size affects the amount and size of projectors. Not to mention the application also affects what kind you get.
Frame syncs: are like direct boxes. Direct boxes balance un balanced signal, frame syncs time un-timed signal.
Genlock: is like word clock, it times everything together.
Waveform: is like a vu meter, it measures the signal.

Terms
White balance
: is like eq,white balancing is used to color the camera so it looks the way you want it to.
Knee: is a compressor, knee is a setting on the cameras that compresses the whites from getting too bright.
Iris: is like audio gain, it is how much light you are letting it.
Aux outs: direct outs, single source out, or program out only
Key: is like reverb, delay and other effects. You take incoming video and you manipulate it to overlay your video in some way. In the old days you had to physically insert video into a key, rather than digitally route.
MLE: is like mix outs. Think monitor engineer and how they have different mixes for everyone in the band, this is kind of like an MLE, it is different mixes. Only difference is MLEs usually go to program than to different destinations, although they can be set to specific destinations as well.
Preview: cue, as you listen to a source before it goes live, in video you look at a source before you put it into program.
Clean feed: mix minus, video without keys, usually can specify which before which keys to send out

Feel free to add any other ones you think of in the comment section.

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About brhoda

I freelance doing a few different thing in the video and live production market. I worked for a church for 5 years directing services and designing control rooms.
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One Response to Video from an audio perspective

  1. Pingback: Video from an audio perspective | Worship IMAG | Harp and Bowl Worship

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