Abstract: In order to obtain a sound-broadened image and a clear sound-image discrimination image when producing plural kinds of sounds, the electronic musical instrument and the like provides a sound-image position control apparatus. This apparatus at least provides a signal mixing portion (e.g., matrix controller) and a virtual-speaker position control portion. Herein, the signal mixing portion mixes plural audio signals supplied from a sound source and the like in accordance with a predetermined signal mixing procedure so as to output plural mixed signals. In order to control positions of virtual speakers which are emerged as sound-producing points as if each kind of sounds is produced from each of these points, the virtual-speaker position control portion applies different delay times to each of plural mixed signals so as to output delayed signals as right-side and left-side audio signals to be respectively supplied to right-side and left-side speakers.