Archontis Politis, Tapani Pihlajamäki, and Ville Pulkki
Parametric Spatial Audio Effects
Companion page for a paper in the 15th International Conference on Digital Audio Effect (DAFx-12), York, UK, September 17–21, 2012
Parametric spatial audio coding methods aim to represent efficiently spatial information of recordings with psychoacoustically relevant parameters. In this study, it is presented how these parameters can be manipulated in various ways to achieve a series of spatial audio effects that modify the spatial distribution of a captured or synthesised sound scene, or alter the relation of its diffuse and directional content. Furthermore, it is discussed how the same representation can be used for spatial synthesis of complex sound sources and scenes. Finally, it is argued that the parametric description provides an efficient and natural way for designing spatial effects.
PaperThe paper can be found in the official online proceedings. Here is a link to the paper.
All files are rendered for a 5.1 setup using the DirAC method as described in the paper. The binaural versions are generated from a symmetric 8 loudspeaker virtual rendering, converted to binaural using HRTFs from the Listen set by IRCAM.
1. Modification of directional properties
Zooming (via B-format projection)
Spatial modulation and morphing
2. Reverberation and ambience modification
Diffuse field control
3. Spatial sound synthesis
Spatial extent synthesis
Updated on Friday February 26, 2013