Does anyone know of a good natural audio mapping for "too close" and "too far away"?
Users are using a laser scanning device to capture a 3D shape. The device functions well within a certain range distance from the shape, less so when getting closer or further away from it. The software should provides audio feedback to indicate where the user is in relation to the ideal distance.
My thought so far are to use pitch: high for near, low for far. Would this be a usable mapping? And if so, is it better for indicating the degree of "too close" by increasing the pitch or by increasing the volume?
Notes: - There is visual feedback as well, but user may not have time to look at the screen. - The user is there with a patient and may be reluctant to receive overly explicit correctional feedback ("Too far away").