| Filed | Description | |
|---|---|---|
| 10/7/25 | 1.01 Material Agreement | → |
| 8/11/25 | 1.01 Material Agreement | → |
| 7/17/25 | 1.01 Material Agreement | → |
| 7/11/24 | 1.01 Material Agreement | → |
Sound is a phenomenon in which pressure disturbances propagate through a transmission medium. In the context of physics, it is characterised as a mechanical wave of pressure or related quantities, whereas in physiological-psychological contexts it refers to the reception of such waves and their perception by the brain.