Source purpose
Each sound retains the role it serves.
Purpose and priority for the sounds sharing a person’s listening space.
INSIDE STATIC AUDIO LAYERS
Audio Layers separates safety, accessibility, people, active tasks, media and ambient sources. Mixing and interruption retain the person’s control instead of letting every audio source compete equally.
Each sound retains the role it serves.
Important physical and chosen human context receives appropriate precedence.
Ducking and interruption follow policy rather than promotional demand.
A promotional source does not receive permission to interrupt music or conversation by declaring itself urgent.