Title :
Embedded implementation of acoustic field enhancement for stereo headphones
Author :
Iwanaga, Nobuyuki ; Kobayashi, Wataru ; Furuya, Kazuhiko ; Sakamoto, Naohisa ; Onoye, Takao ; Shirakawa, I.
Author_Institution :
Dept. Inf. Syst. Eng., Osaka Univ., Japan
Abstract :
Embedded implementation of acoustic field enhancement has been devised dedicatedly for stereo headphones. Based on the analysis of the human auditory sense, this approach successfully performs the acoustic signal processing in order to widen an acoustic field generated through stereo headphones with low computational costs. Software implementation is evaluated by using an embedded DSP and an embedded RISC processor in order to confirm the practicability of the proposed approach. For both type of processors, the acoustic field enhancement is achieved dissipating about 50mW which is small enough to be used in mobile applications.
Keywords :
acoustic field; acoustic signal processing; digital signal processing chips; headphones; reduced instruction set computing; 50 mW; DSP; RISC processor; acoustic field enhancement; acoustic signal processing; computational costs; embedded implementation; human auditory sense; mobile applications; stereo headphones; Acoustic signal processing; Computational efficiency; Digital signal processing; Embedded software; Headphones; Humans; Performance analysis; Reduced instruction set computing; Signal analysis; Signal generators;
Conference_Titel :
Circuits and Systems, 2002. APCCAS '02. 2002 Asia-Pacific Conference on
Print_ISBN :
0-7803-7690-0
DOI :
10.1109/APCCAS.2002.1114906
