MALSORI (대한음성학회지:말소리)
- Issue 47
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- Pages.85-96
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- 2003
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- 1226-1173(pISSN)
Sound Field Effect Implementation Using East Algorithm
고속 알고리즘을 이용한 음장 효과 구현
- Son Sung Young (ICU) ;
- Seo Joung Il (ETRI) ;
- Hahn Minsoo (ICU)
- Published : 2003.09.01
Abstract
It is difficult to implement sound field effect on real time using linear convolution in time domain because linear convolution needs much multiply operations. In this paper three ways is introduced to reduce multiplication operations. Firstly, linear convolution in time domain is replaced with circular convolution in frequency domain. It means that it operates multiplication in place of convolution. Secondly, one frame will be divided into several frames. It will reduce the multiplication operation in processing that transforms time domain into frequency domain. Finally, QFT will be used in place of FFT. Three ways result much reduction in multiplication operations. The reduction of the multiplication operation makes the real time implementation possible.