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Pragmatic AV (or how to spend what you need to spend on what you - - PowerPoint PPT Presentation

Jun 28, 2023 246 likes •846 views

Pragmatic AV (or how to spend what you need to spend on what you need to spend it on) Andi Allan CTS-D Senior Design Engineer Introduction Reflex.co.uk creating connected workspaces Topics 4K (or not to 4K) Scaling

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Pragmatic AV

(or “how to spend what you need to spend on what you need to spend it on”) Andi Allan CTS-D Senior Design Engineer

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Reflex.co.uk creating connected workspaces

Introduction

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Reflex.co.uk creating connected workspaces

Topics

Reflex.co.uk creating connected workspaces

  • 4K (or not to 4K)
  • Scaling
  • Audio
  • Standards
  • Swiss Army knife design
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Reflex.co.uk creating connected workspaces

4K (or not to 4K)

  • Applications
  • Issues
  • Image sizes
  • 4K readiness
  • Demonstration
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Reflex.co.uk creating connected workspaces

4K applications

  • Desktop
  • Signage
  • Medical
  • Simulation
  • Cinema/telly
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4K issues

  • Bandwidth = cost
  • Image size
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Image sizes

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Minimum viewing distance

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Reflex.co.uk creating connected workspaces

Desktop

  • 80cm viewing distance
  • Infocomm 1:6 – 10”
  • Full HD – 20”
  • UHD – 41”
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Reflex.co.uk creating connected workspaces

Small meeting room

  • 3.3m maximum viewing distance
  • Infocomm 1:6 – 44”
  • Full HD – 56-84”
  • UHD – 84” to 168” (1m – 2m tall)
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Reflex.co.uk creating connected workspaces

Large meeting room

  • 8m viewing distance
  • Infocomm 1:6 – 107” (1.3m tall)
  • Full HD – 136”-204” (1.6m to 2.5m tall)
  • UHD – 204” to 408” (2.5m to 5m tall)
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Auditorium

  • 16m viewing distance
  • Infocomm 1:6 – 214” (2.7m tall)
  • Full HD – 272”-408” (3.4m to 5m tall)
  • UHD – 408” to 815” (5m to 10m tall)
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4K Ready?

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4K Ready?

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4K demos!

  • Photos & drawings
  • Each at various resolutions
  • Blue card if you spot the resolution going up
  • Pink card if you spot the resolution dropping
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Reflex.co.uk creating connected workspaces

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Second set

  • Those were UHD, 1080, 720, 600, 480
  • Next – schematics
  • These may not be the same order!
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Final set…

  • Those were 480, 600, 720, 1080, UHD
  • Floor plans
  • These may not be the same order!
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Done!

  • Those were 720, 1080, 600, UHD, 480
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4K summary

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Scaling

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Laptops

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Reflex.co.uk creating connected workspaces

Videowalls

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Scaling demo

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Reflex.co.uk creating connected workspaces

Scaling summary

  • Consistency for users
  • Clean image switching
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Reflex.co.uk creating connected workspaces

Audio

  • Acoustics
  • Fancy speakers
  • Surround sound
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Acoustics - reverberation

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Pragmatic approach?

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Audio - NXT Speakers

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Audio – line arrays

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Audio – ceiling speakers

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Audio – surround sound

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Example – Lecture Theatre

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Example – Lecture Theatre

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Audio summary

  • Intelligibility comes from the room
  • The right speakers can help
  • Does PowerPoint even support surround

sound?

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Standards

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Swiss Army knife design

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Swiss Army knife design

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Example – Divisible rooms

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Example – Divisible rooms

Usage Cost per use Cost to hire Worth it? Once a week £100 £500 Yes Once a month £416 £500 Maybe Four times a year £1250 £500 Probably not Once a year £5000 £500 Do you have to ask?

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Alternative?

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Summary

  • 4K has applications; do you?
  • Audio quality has more to do with the space

than the system

  • Scaling is your friend
  • Standards save money
  • Buy what you need most often
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Questions?

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