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How much do you know ...

What do you know? Take the test.

Whatever level of experience you have in the AV field, technicians and engineers are always learning each day about new technology, as well as great tips and tricks to save time on setup and what works best with this or that piece of equipment.

But how many of the AV engineers that we know, actually sit down and prepare for exams on AV?  A lot of the time, experience is passed down first hand on the job, or in the office, or warehouse during QC and prep for events.

I am all for education. I enjoy reading about new technology but its also good to evaluate what you think you know, and then if there are any areas you need to revise, you can focus on getting that area of expertise up to standard too.

infocomm internationalI was on InfoComm International site this week and found a number of quick written tests you can download and take, to see how much you have learned so far, and see where you need to improve. Answers are at the back of the test – but don’t look until you’ve finished.

Here is their website Infocomm International-self-assement you can scroll down and see 8 practice exams to test how much you do or don’t know.
Take your time, some of the questions will make you think.

Here is the link to download  the Certificate Preparation Pretest Essentials.pdf try it and see how you do.

Steve

 

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Top 10 tips for great ...

Top 10 tips for great video projection
1 Choose the brightest projector that your budget will allow. There is a big difference between a 2500 ansi SD NTSC table top projector and a 5000 ansi HD-SDi projector, especially if you are showing video or graphics in a well lit room.

2 The size of screen(s) should be proportional to the size of audience and room size you have. A good rule of thumb is an equation of 1/10. If the room is 100ft long divide by 10 and your screen height should be approx 10ft tall. For HD that would be 9x16ft screen and for SD that would be 10.5x14ft screen

3 Check the manufacturers recommendations as to whether the projector needs to be placed level with the bottom of the screen, or whether the projector needs to be in the center of the height of the screen. This helps reduce keystone, having to lens shift too much and helps with focus on the screen edges.

4 What to do when showing graphics…

5 Type of Lenses…

6 Power type…

7 Connections to use…

8 Type of cabling…

9 Cold Stacking…

10 Lamps, lens cleaning, filters…

<- Click logo Top 10 tips for great video projection to read the full list of 10 tips for great video projection.

 

Steve

 

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GRAMMY® Awards

DiGiCo audio consoles used at the Grammy AwardsLet me ask you a question. How many consoles do you think it takes to run just the live production at an awards show like this?
Guess again.
For the second year running Digico Consoles, manufactured in the UK, have been the consoles of choice at the GRAMMY® Awards.
This year they used a total of 10 consoles for the Academy Awards.

The audio production team used five DiGiCo SD desks: four SD7′ consoles and an additional SD5 all connected to 11 SD Racks.

On the night they used 276 mic pre-amps with 176 outputs being shared between the five front desks and the 11 DiGiCo SD racks. All this to drive JBL”s new line array, the Pro VTX V25 3 way system.

If that wasn’t enough, there were over 50 wireless microphones used on the stages and trucks outside feeding back any of the band’s Pro Tools backing tracks – oh you thought it was all live?

Did you guess the right number of how many consoles would be needed to produce an event like this? Me neither.  But what a great night.

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Filming a simple Web Video

Canon Camcorder

Filming a web video requires attention to the slightest detail.

1If you have never filmed a web video before, then you may only be concerned with how the video looks. While this is very important, there is something that you must pay attention to even more than how the video looks. If you have ever watched a web video, and the audio was off, either it was too quite or it didn’t match with what was happening on the screen, you probably stopped the video and went to another website.

This is because the audio of a web video is extremely important in getting your message across. But how do you ensure that your web video has great audio quality?

2The main step to having amazing audio with your web video is to make sure that you have all of the proper equipment. Now, this doesn’t mean that you have to go out and purchase a $500 boom microphone that motion pictures use, however, it does mean that you will need to have at least the basic equipment needed. Many people when they film a web video simply use the microphone that is located on their video camera. While this may be passable for more visually-focused web videos, many videos require a person to talk.

When you use the pre-installed microphone on your camera, you are going to get low-quality sound, and if it is windy outside, or if there is any type of background noise, your audio will be a mess. This is why having a decent hand-held microphone, or even better a lav mic that can clip onto the person speaking’ shirt or jacket is very important.

“audio of a web video is extremely important in getting your message across”

3The best sound is obviously going to come from the Lav attached close to the person speaking mouth. But if you want a video without the obviously black bumble bee being seen then there are alternative methods to get good audio. Just use a hand held as if you are a news reporter. If you are worried that holding a hand-held microphone will make your web video look “cheap,” here are a couple of ways to cheat the system. If you have more than one person helping you with your web video, simply allow the extra person to hold the microphone out of frame while you are speaking. This will ensure that you are clearly, and professionally, heard but you don’t have to worry about holding the microphone. However, if you do not have an extra person to hold the microphone, you can simply place the microphone close to you, but keeping it out of the shot. This method works best on up-close tight framed shot, like above the waist or “bust” shot.

Since the frame will be closer on you, you will not have to worry about the microphone showing up in the shot. If you are filming siting down, you can place the microphone on a table by you. Another great tip when sitting down and filming a tight frame, is to hold the microphone in your lap with it facing upwards, just don’t move your legs a lot!

This will let you have a shot that is focused on your mid-waist and up, as well as allowing the microphone to be close enough to your mouth to record the audio. Make sure that you speak louder than you normally do when the microphone is in your lap, however, don’t yell.

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