| 摘要 |
PURPOSE: A circuit for spreading a sound signal by a calculating system of a mutual connecting type is provided to prevent degradation of characteristics of signal to noise by composing a complex circuit and to materialize a system with high performance in price. CONSTITUTION: A circuit for spreading a sound signal by a calculating system of a mutual connecting type includes left and right input steps(40, 50), a calculating portion(10), a buffer(20), output steps(60, 90) and a final output step(80). The left and right input steps(40, 50) are connected to the output step of each sound facility. The calculating portion(10) of the mutual connecting type receives two sound input signals through the left and right input steps(40, 50) between the output steps(60, 90) and makes the frequency gain different from each other according to the correlation in phase of two signals and extends the field of signal regeneration. An output step of the calculating portion(10) of the mutual connecting type is conveyed to the final output step(80) appropriate to the video SOFT the buffer(20) and the other output step of the calculating portion(10) of the mutual connecting type is conveyed to the final output step(80) appropriate to the video SOFT the buffer(20), the frequency of which is same and which reverses only the phase to 180 degrees.
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