| 摘要 |
PURPOSE:To generate a sound field signal to reproduce plural types of sound fields producing the sense of spread and the sense of presence without a sense of displeased opposite phase. CONSTITUTION:The difference signal of an inputted stereo signal is generated by a multiplier 3-1 and an adder 4-1. The difference signal is branched into two, and then the convoluting processing of reflection sounds is performed by two convoluting processing means 13-1 and 13-2. The addition of the processing result and the inputted stereo signal is performed by adders 4-2 and 4-3, and then the addition result is outputted. By convoluting the reflection sound on the stereo difference component, the natural spread sense of sound expanse and the sense of presence without the sense of opposite phase can be reproduced. By providing two convoluting processing means, the sound field with convoluted reflection sounds different can be reproduced in the signal outputted from two output terminals 10 and 11. In short, the addition of the reflection sound can be performed by stereo. |
