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It’s time for the episode that you’ve all been requesting … AV Math! And because this requires a lot of writing and graphics, I’ve included all of those below. So do feel free to give this episode a watch, and let me know if you have any questions or want to work through anything together — let me know, and I will try my best to help! Also, thank you to Rebecca Sullins for helping me as my guest on this episode!
P.S. Also let me know if there are any other of my notes that will be useful for you guys to see too.
A Few Helpful Formulas
- Aspect Ratio: WH or width x height
- Pythagorean Theorem: a2 + b2 = c2
- Logarithmic Equations
- Power: 10Log(PV/PR)
- Voltage: 20Log(VV/VR)
- Distance: 10Log(DR/DV)
Check My Math – And my favorite mnemonic device for Ohm’s law, courtesy of Chuck Espinoza.
Full Ohm’s Law Wheel (complete with what each variable measures):
英语
美国
本播客中的其他单集
It’s time to talk about the way we connect. No, not with one another. I’m talking cables and the things at each end you use to plug them into stuff. If you’ve ever wondered what a Phoenix connector is, why wires and cables are NOT interchangeable terms and why building an AV r...
I took a few weeks to rearrange my episode structure, and now I am back here with all of you — and I am ready to learn! If you’re still following the CTS Exam Guide, I’m so sorry that the chapters no longer match the episode numbers. I will let you know we are still on Chapter 5 — I...
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For...
Control systems — they’re such a mystery to me. What are they about? What can they do? What do they want?
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So — if you need help studying: commands versus functions, how a CPU communicates, types of control syst...
Now that I have some extra time to study for the CTS exam, I decided to take my time with this next section. Instead of hopping right into understanding video systems, I invited Sony Electronics Professional’s Chrissy Sara to discuss some concepts of light with me.
As it happens, light works s...
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