CPD Course for Architects in sound systems.

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CPD Course for Architects in sound systems.

• Presented by
• AV Concepts

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The Author

• The seminar has been produce by James Friendship
  of AV Concepts Ltd.
• Experience.
• 10 years experience within the industry.
• CTSD Qualified.
• CTS qualified.
• SynAudCon sound design Qualified.

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AV Concepts

• Founded in 2001
• Offers a range of audio visual installation
  solutions.
• AV Concepts offer design only and installation
  services
• CTS Gold Company (1 of only 16)
• NICEIC approved
• Becta Approved

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Learning Objectives

• Understanding basic room acoustics
• Some sound physics
• Understanding Speaker Placement
• Speaker Selection
• Understanding Microphones and placement
• Constructing a design team

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Acoustic concepts

• Sound vs. Light
• Inference
• Frequency Domain

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Room Shapes
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Balconies a special case
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The 30 Millisecond Rule

• 30 Milliseconds ?
• 10M
• Total Audio Path

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Some basic Physics

• Inverse Square Law

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The decibel

• What is it?
• What is loud ?
• Why is 6dB important

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Understanding speaker placement

• Line of Sight
• Inverse square law
• Speaker angles

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Understanding Microphones

• Cabled
• Wireless
• Tie Clip (lavalier)
• Headset Mics
• Lectern Mics
• Inverse Square law

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Constructing a good team

• Acousticians
• Sound system Designer
• Always ask for the numbers!

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New Innovations

• 3D Modelling systems
• Steered Line arrays
• CobraNet

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3D Modelling

• Available since 2005
• Allows completely predictable results
• Allows end user to hear sound system before room
  is even built.

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Steered Line arrays

• Break the inverse square law
• Steerable!!!!
• Excellent for high RT60 environments

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Cobranet

• Allows audio to be networked
• Can use existing wiring in building
• Massive distances between sites.

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Summary

• Speaker Placement and selection is essential.
• Remember certain room features will have adverse
  effects
• Get Designers to do the maths.
• Early design of audio systems save big

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Questions