his her everyday life for this reason in such a case the user can easily differentiate between the voices and can quickly notice a change in successive sounds compared with the case of using other types of sounds such as instrument sounds or the like fig5 a and 5b are views showing an example of sound information pieces outputted for a given path fig5 a shows a moving path where the mark u25cf indicates the current position of the moving target and the moving subject moves along the path in the direction indicated by the arrow fig5 b shows sound information pieces corresponding respectively to sounds to be outputted by using a series of symbols respectively indicating directions the moving subject moves in the forward direction for a while after starting from the mark u25cf and this movement is expressed by showing a series of the symbols u201c u201d indicating the forward direction this means that the sound corresponding to the sound information piece stored in association with the forward direction is outputted successively then similarly sounds corresponding to the sound information pieces stored in association with moving directions i e the rightward direction the backward direction the leftward direction amp the backward direction the rightward direction and then the forward direction are outputted sequentially returning to fig2 a current position identifying unit 202 identifies a current position of the moving target e g the information processor 1 the identified current position can be an absolute position such as coordinate values.