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Embedded implementation of acoustic field enhancement for stereo sound sources

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5 Author(s)
Iwanaga, N. ; Dept. of Inf. Syst. Eng., Osaka Univ., Japan ; Kobayashi, W. ; Furuya, K. ; Onoye, T.
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An acoustic field enhancement implementation for stereo sound sources is proposed for dedicated embedded systems. With the use of an embedded DSP-based platform, our distinctive algorithm successfully constructs a signal processing filter structure to enhance the 3D acoustic field through both stereo headphones and stereo speakers. Since this algorithm is implemented by a 16 bit fixed-point DSP with a computational cost of about 50 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.

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Consumer Electronics, IEEE Transactions on  (Volume:49 ,  Issue: 3 )