Why spatialize sound?

Many reasons to do that:

  • create a "soundscape" around the listener
  • move sound sources in trajectories
  • create the illusion of distance
  • move the listener through different spaces
  • use space as a generator of tension and relaxation
  • create an orchestra of loudspeakers to diffuse sound, using the spatial position of the speakers as part of the orchestral rendering of sound

Or, more importantly:

  • create a space where more complex sounds can live and be perceived

Here are a couple of examples that illustrate how our perception of space influences the perception of separate sources:

  • Streaming by Spatial Location (ASA demo track 38, page 82)
  • The Cocktail Party Effect, John Pierce demonstration

How do we spatialize sound?

For a very good reading go this article about Approaches to spatialisation by D. Malham.