A head-mounted device includes a first image capturing device, a transparent display, and circuitry. The first image capturing device captures an image of a scene in a line-of-sight (LOS) of a wearer of the head-mounted device. The circuitry receives an audio segment that corresponds to audio content. The circuitry determines a level of each image characteristic of a background portion and a foreground portion of the captured image. The circuitry estimates a first region on a display portion of the transparent display for display of text information associated with the received audio segment. The circuitry determines a level of each display characteristic from a set of display characteristics for the text information based on the estimated first region and the determined level of each image characteristic. The circuitry controls the display of the text information in the estimated first region of the display portion of the transparent display.