Put it at the exact point a cyclist enters the frame or reaches a pedestrian, before the action that follows. Pair it with an air horn afterwards for a bigger escalation when the first warning is ignored, then cut to the rider passing.
關於此聲音
This clip is a single bicycle bell ring, lasting about two seconds, with a bright metallic ding that cuts through background noise. It feels cheerful and politely urgent, like a friendly warning rather than a scolding. It works as a quick, light-hearted alert that grabs attention without sounding harsh or alarming.