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BU-LIVE Sound Hardware

• Computers
  • SGI Indigo
    • 100 MHz MIPS R4000 processor
    • 32 MB memory
    • Two-channel audio output
    • Runs telephony generator, which digitizes microphone input and sends audio stream events to event server.
  • SGI Indy
    • 175 MHz MIPS R4400 processor
    • 256 MB memory
    • Four-channel audio output
    • Runs telephony/sound server, which monitors incoming telephony streams, plays localized sounds, etc.
• Audio hardware
  • Ambisonics decoder ("black box"): takes four-channel Indy output and generates eight speaker feeds.
  • Yamaha O3D digital mixer
  • Kurzweil 2500R rackmount synthesizer (offline use only)
  • Rotel 6-channel amplifier
  • Rotel 2-channel amplifier
  • NHT SuperZero satellite speakers (8)
  • NHT SW1S subwoofer
• Discussion
  • Room considerations:
    • You need more space than you think.
    • Watch out for sources of noise: A/C, windows, computer fans, etc.
  • PC's with 3D/multi-channel sound cards becoming inexpensive alternative.

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