2010 | OriginalPaper | Chapter
3D Sound Techniques for Sound Source Elevation in a Loudspeaker Listening Environment
Authors : Yong Guk Kim, Sungdong Jo, Hong Kook Kim, Sei-Jin Jang, Seok-Pil Lee
Published in: Communication and Networking
Publisher: Springer Berlin Heidelberg
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In this paper, we propose several 3D sound techniques for sound source elevation in stereo loudspeaker listening environments. The proposed method integrates a head-related transfer function (HRTF) for sound positioning and early reflection for adding reverberant circumstance. In addition, spectral notch filtering and directional band boosting techniques are also included for increasing elevation perception capability. In order to evaluate the elevation performance of the proposed method, subjective listening tests are conducted using several kinds of sound sources such as white noise, sound effects, speech, and music samples. It is shown from the tests that the degrees of perceived elevation by the proposed method are around the 17º to 21º when the stereo loudspeakers are located on the horizontal plane.