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Advanced Audio Subsystem Design by Karim Morsy's Team

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  1. Object Design: Audio Subsystem Karim Morsy Audio Team

  2. Overview • Implementation language and Documentation • Object Model • Reuse of algorithms and adaption of existing open source technologies • Trade-Offs

  3. Implementation language and Documentation • C, C++, Objective C • Doxygen

  4. Existing Open Source Solution

  5. VSOExtendedOpenAL • Conventions for writing extensions to OAL • Parameterized C functions • void alListenerf( ALenum param, ALfloat value )

  6. Parameter Extensions • VSO_TIMEPITCH • VSO_PITCHSHIFT • VSO_REVERB • Reverb Presets: SMALL_ROOM,LARGE_ROOM, CATHEDRAL,LARGE_HALL, etc..

  7. Extending Listener Functionality

  8. Audio Subsystem Layers (closed architecture)

  9. Trade-Offs • Constraint: No way to find the current time stamp • We have running subsystem with a variety of extra features • Highly efficient and robust

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