AES Paris 2016
Tutorial T18

Monday, June 6, 15:45 — 17:00 (Room 351)


T18 - 3D Sound Reproduction—A Study of Different Format Reproduction Possibilities

Michael Williams, Sounds of Scotland - Le Perreux sur Marne, France

This presentation will analyze the different formats of 3D sound reproduction and the basic principles of sound localization around a 3D microphone/loudspeaker array. It also explains the psychoacoustics of perception in a 3D hemispherical space. The ˜Witches Hat" localization and "Top Hat" localization will be explained to illustrate the parameters for this 3D localization - these two localization structures were presented by the author at a recent Taktons Convention in Novi Sad, Serbia. This presentation will demonstrate the characteristics of the present 3D formats with a multitude of sound recordings from the sounds of nature, to various other musical formations. The proposed sound formats include: • 5 horizontal channels + 4 elevation channels; • 5, 7, 8 horizontal channels with 4 (or 8) elevation channels, plus 1 Zenith channel. The structure of these two types of configurations leads quite naturally to a number of very interesting compatible configurations, which are also demonstrated using the technique of immediate quick fades between tracks of a simultaneous microphone array recording, for comparison without any time lapse. A certain number of recordings will be presented from the natural environment and also with some musical groups. All this will lead up to a demonstration of a new format ˜Comfort 3D" using a triple five (plus one) microphone array recording system. Some of the experimental listening tests with an artificial sound source moving around the microphone array at various angles of elevation can also be demonstrated if time allows.

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