In the 领域 of 作曲 the 概念 of the 声音 符号 or Sound-as-Symbol is a 手段(意味着) of attempting to 理解 电子声学 音乐 whose discourse and narrativity is 基于 on 关系 between 声音 selected 精确 for their 参考 or extrinsic signifying 潜力 This approach should be 比较 to the 舍费尔 概念 of 化约 聆听 Closely 相关 are the 概念 of 声音 serving metaphorical or metonymic 功能（函数） within signifying practice Trevor Wishart has written extensively on the subject

Certain 声音 such as the sea wind 雷 machines bells and so on may carry symbollic 功能（函数） within cultures In the 领域 of 声音景观（声景） 研究 声音 within our everyday 环境 may be classified analysed and 研究 in 术语 of any such symbolism Chapter 12 of R Murray Schafer's seminal book on the 声音景观（声景） The 调音系统 of the World Knopf 1977 represents an early 例如 of such a discussion