Audible pedestrian signals are a standard feature of crossings across Australia, designed so blind and low vision pedestrians can hear when to wait and when to cross. The wait phase uses slower, regular clicks, which speed up dramatically once the green walking figure appears. That faster crossing sound became widely recognised outside Australia after it was sampled in Billie Eilish's 2019 hit Bad Guy, recorded while touring in Australia. The slower wait tick has since circulated online as a clean, loopable effect for timing and tension.