源 识别 提及 to the ability of a 听众 to ascribe a real or imaginary 物理 origin or provenance to a 声波 This is likely to be a great 重要（意义） in 聞/幻听 聆 situations to the extent that it may become an 方面 of the 樂/乐 discourse The 术语 is closely allied to the 概念 of 音色