23rd International AES Conference
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SESSION 4: CREATING SPACE WITH DSP


Spatial Post-Processing of Audio Recordings
Jean-Marc Jot
Creative Advanced Technology Center, Scotts Valley, CA, USA


This paper reviews signal processing methods for improving the presentation of two-channel and multichannel recordings by spatial processing in consideration of the playback system. The goal is to enhance the listener�s experience by attempting to address limitations of the playback system or recording format, while preserving the original audio content as faithfully as possible. The approaches reviewed here include: (1) artificial reverberation, (2) virtualization of recordings for playback over headphones or two loudspeakers, and (3) up-mix or stereo widening of two-channel recordings for playback over two-channel or multichannel loudspeaker systems.