the soft palate (velum) is responsible for regulating the production of nasal sounds by controlling the airflow into the nasal cavity.
Role of the Soft Palate in Nasal Sound Production:
When the soft palate is lowered, it opens the passage to the nasal cavity, allowing air to escape through the nose. This produces nasal sounds like /m/, /n/, and /ŋ/.
When the soft palate is raised, it blocks the nasal cavity, forcing air to exit through the mouth, producing oral sounds instead.
