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Computer Science Honours 2012

This project explores the development of a 3D graphical user interface for controlling distributed audio devices in large venues. Designed under the supervision of Professor Richard Foss at Avitech Systems, the system operates using IEEE 1722.1 (AVDECC) protocols for audio and video device discovery, connection management, and control. The interface integrates various devices, including Bose and Biamp systems, utilizing Windows Packet Capture for device enumeration. It emphasizes efficient layout planning and utilizes technologies such as Google SketchUp for graphical representation.

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Computer Science Honours 2012

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  1. Controlling Distributed Audio Devices from a 3D Graphical User Interface Computer Science Honours 2012 Principal Investigator: Mitchell Hedges Supervised by: Professor Richard Foss

  2. Avitech Systems • Based in Port Elizabeth • Owned and run by Lawrence Bricknell • Digital sound installations for large venues • Work devices around floor plan • Several standards for cabling • Mainly Bose devices • Biamp systems’ daVincifor control

  3. IEEE 1722.1 – AVDECC 1 • Audio/Video Discovery, Enumeration, Connection Management and Control • Uses the IEEE 1722 AVTP for streaming • 5 types of AVDECC devices • Entity • Controller • Talker • Listener • Proxy

  4. IEEE 1722.1 – AVDECC 2 • 3 Sub-protocols • AVDECC Discovery Protocol (ADP) • AVDECC Connection Management Protocol (ACMP) • ACMP Data Units (ACMPDU) • AVDECC Enumeration and Control Protocol (AECP)

  5. WinPCap • WindowsPacketCapture • Link Layer (Layer 2) packet capture • Captures “raw” packets • Useful for enumeration of devices using 1722.1 protocol • Used in Visual C++ for project • #include <pcap.h>

  6. Literature Review 1 • Sound System Control Protocols • Harman Pro HiQNet • Crossfire Network (XFN) • AVDECC • Graphical Sound Installation • UNOS Creator • Harman System Architect • BSS London Architect

  7. Literature Review 2 • Google Sketchup • Ruby • Ruby in Sketchup • User Interface • Cameras • Entities • Linking Visual C++ to Sketchup • Socket Programming in VC++/Sketchup

  8. Interfaces

  9. Venue Construction

  10. UML - Planning

  11. Questions ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

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