Title :
´Out-of-head´ acoustic field enhancement for stereo headphones by embedded DSP
Author :
Kobayashi, W. ; Furuya, K. ; Sakamoto, N. ; Onoye, T. ; Shirakawa, I.
Author_Institution :
Arnis Sound Technol. Co. Ltd., Tokyo, Japan
Abstract :
A novel algorithm for enhancing a given 3D acoustic field to the extent of ´out-of-head´ has been developed in dedicated fashion for stereo headphones. According to the analysis of the human auditory sense, this algorithm successfully performs the acoustic signal processing with low computational cost, and thus constructs a variety of listening environments even for headphones without causing listening fatigue. Since the algorithm can be implemented by a 16 bit fixed-point DSP with the computational cost of 34.4 MIPS and a small amount of memory, high-fidelity spatial acoustics can be achieved in various applications, such as portable stereo players, music streaming to mobile devices, etc.
Keywords :
acoustic signal processing; digital signal processing chips; embedded systems; headphones; 3D acoustic field; acoustic signal processing; embedded DSP; fixed-point DSP; high-fidelity spatial acoustics; human auditory sense; listening environments; mobile devices; music streaming; out-of-head acoustic field enhancement; portable stereo players; stereo headphones; Acoustic signal processing; Algorithm design and analysis; Computational efficiency; Digital signal processing; Fatigue; Headphones; Humans; Performance analysis; Signal analysis; Signal processing algorithms;
Conference_Titel :
Consumer Electronics, 2002. ICCE. 2002 Digest of Technical Papers. International Conference on
Conference_Location :
Los Angeles, CA, USA
Print_ISBN :
0-7803-7300-6
DOI :
10.1109/ICCE.2002.1014002