Answer:
The answer is "Diaphragm".
Explanation:
The lack of technology that historically prevented sound processing from using an electromagnetic recording system, that has a device capable of codifying electrical impulses.
- Its Diaphragm has been the device, that made it all possible.
- It is large, melodically but constantly expanding dome-shaped muscle and often unintense.
- It expands while straightens as well as the cavity of the chest extends during inhalation.
