DocumentCode :
1652700
Title :
DSP implementation of low computational 3D sound localization algorithm
Author :
Sakamoto, Noriaki ; Kobayashi, Wataru ; Onoye, Takao ; Shirakawa, Isao
Author_Institution :
Dept. Inf. Syst. Eng., Osaka Univ., Japan
fYear :
2001
fDate :
6/23/1905 12:00:00 AM
Firstpage :
109
Lastpage :
116
Abstract :
This paper describes a DSP implementation of a real-time 3D sound localization algorithm. A distinctive feature of this implementation is that the audible frequency band is divided into three on the basis of the analysis of the effects of sound diffraction, such that in these three subbands specific schemes of the 3D sound localization are devised with the use of an IIR filter, three parametric equalizers, and a comb filter, respectively, so as to be run real-time on a 16-bit fixed-point DSP at a low frequency of 50 MHz, maintaining the high-quality sound localization. As a result, this 3D sound localization scheme can be applied to mobile applications such as headphones and a handy-phone with the use of an embedded DSP
Keywords :
IIR filters; acoustic signal processing; audio signal processing; comb filters; digital signal processing chips; equalisers; headphones; telephone sets; 16 bit; 50 MHz; DSP implementation; HRTF; IIR filter; TMS320C54x; acoustic signal processing; audible frequency band; comb filter; embedded DSP; fixed-point DSP; handy-phone; head-related transfer function; headphones; mobile applications; parametric equalizers; real-time 3D sound localization algorithm; sound diffraction effects; subbands; Acoustic diffraction; Acoustical engineering; Digital filters; Digital signal processing; Ear; Equalizers; Frequency conversion; Humans; IIR filters; Signal processing algorithms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Systems, 2001 IEEE Workshop on
Conference_Location :
Antwerp
ISSN :
1520-6130
Print_ISBN :
0-7803-7145-3
Type :
conf
DOI :
10.1109/SIPS.2001.957336
Filename :
957336
Link To Document :
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