| 摘要 |
An apparatus for producing panned tones comprises tone generator for generating a plurality of tone signals, the tone generator including a plurality of channels each for generating one of the plurality of tone signals. The plurality of tone signals generated by the tone generator are grouped into a plurality of groups. A pan setting device is provided for setting, for each of the plurality of groups, a manner of how the respective groups are pan-controlled. A pan effecting device is provided for automatically pan controlling said each of the plurality of groups based on respective settings of the pan setting device so that tone panning effects are produced according to each of the plurality of groups. The pan setting device sets characteristic for each of the plurality of groups to move a location of a formed sound image periodically when the plurality of groups of tone signals is output. A movement speed and a movement range wherein a location of the formed sound image periodically moves around may also be controlled.
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