Patent ID: 7327235

Claim:
A vehicle alarm sound outputting device for outputting an alarm sound by driving an alarm sound outputting unit on the basis of information from a condition detecting unit for detecting the condition of a vehicle or the condition of the surrounding of the vehicle, comprising: a position setting unit for detecting a localization position of a virtual sound source of the alarm sound in accordance with a detection result of the condition detecting unit; an alarm controlling unit for controlling the alarm sound outputting unit so that an occupant of the vehicle hears the alarm sound from the virtual sound source; a filter coefficient generating unit for generating virtual sound source filter coefficients in accordance with the localization position of the virtual sound source; a convolution calculator for conducting convolution calculation on audio data of the alarm sound and filter coefficients of the virtual sound source and outputting a virtual sound source audio signal; and a virtual sound source outputting unit for reproducing and outputting the virtual sound source audio signal from the alarm sound outputting unit, wherein the localization position of the virtual sound source is controlled to move so that the occupant hears the alarm sound as if the alarm sound moves, wherein the localization position of the virtual sound source is moved so that the attention-paying direction from the occupant to the virtual sound source is varied within a predetermined range when viewed from the occupant, wherein the filter coefficient generator combines head related transfer functions and cross-talk removing filter coefficients to achieve the virtual sound source filter coefficients.