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Conference Paper
21-Channel Surround System based on Physical Reconstruction of a Three Dimensional Target Sound Field
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- Authors
- Jeongil Seo, Jae-hyoun Yoo, Kyeongok Kang, Filippo M. Fazi
- Issue Date
- 2010-05
- Citation
- AES Convention 2010, pp.1-11
- Publisher
- AES
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents the 21-channel sound field reconstruction system based on the physical reconstruction of a three dimensional target sound field over the pre-defined control volume. According to the virtual sound source position and intensity, each loudspeaker signal is estimated through convolving with appropriate FIR filter to reconstruct a target sound field. In addition, the gain of FIR filter is only applied to the mid frequency band of a sound source signal to prevent aliasing effects and to save the computational complexity at the high frequency bands. Also the whole filter processing is carried out at the frequency domain to adopt a real-time application. Through the subjective listening tests the proposed system showed better performance on the localization in the horizontal plane comparing with conventional panning method.
- KSP Keywords
- Aliasing effect, Computational complexity, Control volume, FIR Filter, Frequency domain(FD), High frequency(HF), Mid frequency, Real-Time applications, Sound field reconstruction, Sound source, Source signal