Improved 3D sound using wavelets

Author

Chon, U.P. ; Kim, I.H. ; Kim, K.N.

Author_Institution

Sch. of Comput. Eng. & Inf. Technol., Ulsan Univ., South Korea

Volume

1

fYear

2001

fDate

26 Jun-3 Jul 2001

Firstpage

54

Abstract

The techniques of an efficient 3-D sound system based on the psychoacoustics of spatial hearing with multimedia or virtual reality have been developed by many researchers. In this paper, we propose an idea for an improved 3-D sound system using conventional stereo headphones to obtain a better sound diffusion from the mono-sound recorded in an anechoic chamber. We use the HRTF (Head Related Transfer Function) for the sound localization and the wavelet filter bank with time delay for the sound diffusion. We investigate the effects of the 3-D sound depending on the length of time delay at the lowest frequency band. Also the correlation coefficient of the signals between the left channel and the right channel is measured to identify the sound diffusion

Keywords

acoustic signal processing; audio acoustics; audio signal processing; delays; digital filters; sound reproduction; transfer functions; wavelet transforms; 3D sound system; HRTF; conventional stereo headphones; correlation coefficient; head related transfer function; psychoacoustics; sound diffusion; sound localization; spatial hearing; time delay; wavelet filter bank; Anechoic chambers; Audio systems; Auditory system; Delay effects; Headphones; Magnetic heads; Multimedia systems; Psychoacoustics; Transfer functions; Virtual reality;

fLanguage

English

Publisher

ieee

Conference_Titel

Science and Technology, 2001. KORUS '01. Proceedings. The Fifth Russian-Korean International Symposium on

Conference_Location

Tomsk

Print_ISBN

0-7803-7008-2

Type

conf

DOI

10.1109/KORUS.2001.975053

Filename

975053