In 舍费尔 理论 this 词 is used to suggest certain 不规则 which are noticeable in the transition from 物理 共鸣 to 感知（认为） 声波 suggesting a 心理（学） 失真 of 物理 'reality' and which demonstrates that 感知 cannot be 化 to 物理 measurement This can take place timbrally or temporally For 例如 a reversed piano 声波 will appear longer than the 原始/原创 because the reversed version is more unusual and alerts the 耳 in a more active way Paraphrase of Michel Chion 1983 Guide des Objets Sonores Eds Buchet/Chastel Paris 1995 translation by John Dack/Christine North