Causal Listening

A mode of listening, identified by composer and theorist Pierre Schaeffer, in which the listener focuses on identifying the source or cause of a sound — for example, hearing crumpling paper and recognising it as something being discarded, or hearing a camera shutter and associating it with taking a photograph. Causal listening is the basis for auditory icons in interface design, where real-world sounds represent digital actions or objects. Because causal listening draws on everyday experience rather than learned conventions, auditory icons tend to be more immediately intuitive than abstract earcons, which rely on semantic listening. In accessible design, causal listening is valuable for creating non-visual representations that users can understand without training.