PROBLEM TO BE SOLVED: To provide an audio assistance in a manner appropriate for each occupant.SOLUTION: The method for audio assistance includes the steps of: determining whether there was detected a feeling of strangeness that an occupant is having to an audio assistance (S2) and changing a manner for the audio assistance (S4 to S7) if the detection of the feeling was determined.SELECTED DRAWING: Figure 6【課題】様々な乗員に適した方法で音声案内を提供する。【解決手段】音声案内方法では、音声案内に対する乗員の違和感を検出したか否かを判定し(S2)、乗員の違和感を検出したと判定した場合、音声案内の方法を変更する(S4~S7)。【選択図】図6