| 摘要 |
PURPOSE:To orient the direction of a sound image, and also, to generate the depth sense by adding a reverberation signal generating circuit, a mixing circuit for setting a mixing ratio and a balance setting circuit to a direction orienting circuit for assigning a sound source signal to plural channels, based on a direction orienting signal. CONSTITUTION:A sound source signal from a sound source consisting of an electronic musical instrument is sent to a multiplier M10 and M11 of a first stage first, and assigned to the right and the left therein, based on a light/left orienting signal PX. Also, an output of the multiplier M10 is sent out to a multiplier M12 and 13 of a second stage, and an output of the multiplier 11 is sent out to a multiplier M14 and M15 of a second stage. Subsequently, by a forward/backward orienting signal PY and an inversion signal, the inverse of PY, the outputs of the multiplier M10 and M11 are assigned forward and backward, respectively, and by these outputs, acoustic loudspeakers SP1 - SP4 are actuated. On the other hand, direct signals from the multipliers M12 - M15 are sent to reverberation sound signal generating circuits 2 - 5, and reverberation signals therefrom are led to multipliers M16, 18, 20 and 22, and inputted to a balance circuit 6 together with outputs of multipliers 17, 19, 21 and 23 in the same way. |
