An object of the present invention is to provide a technique that can estimate whether or not the target sound in a single attempt is noticeable . A saliency estimation apparatus of the sound , the time interval to be presented to the person for the first time interval so as to be listening for certain sounds , the second time period as the time does not enable listening for the predetermined sound interval a first feature amount corresponding to the feature of the micro- saccades appearing on the movement of the human eye which corresponds to the first time period , corresponding to the characteristics of the micro- saccades appearing eye movement of the person corresponding to the second time period including a second feature quantity , and extracting the feature amount extraction unit , based on the degree of difference between the first feature amounts and the second feature quantity , and a remarkable degree estimation unit for estimating the degree conspicuous predetermined sound . BACKGROUND 2 .【課題】単一試行で対象音が目立つか否かを推定できる技術を提供する。【解決手段】音の顕著度推定装置は、第1時間区間を所定の音を受聴可能なようにヒトに呈示する時間区間、第2時間区間を前記所定の音を受聴可能としない時間区間とし、第1時間区間に対応するヒトの眼球の動きに表れるマイクロサッカードの特徴に対応する第1特徴量と、第2時間区間に対応するヒトの眼球の動きに表れるマイクロサッカードの特徴に対応する第2特徴量と、を抽出する特徴量抽出部と、第1特徴量と第2特徴量との相違の度合いに基づいて、所定の音の目立ち度合いを推定する顕著度推定部とを含む。【選択図】図2
