To express sound levels in decibles, sound pressure levels are usually adopted on a reference scale of

- 1
  
  $10 μ P a$
- 2
  
  $20 μ P a$
- 3
  
  $50 μ P a$
- 4
  
  $100 μ P a$

Display Comments

Leave a comment

Login at first then you can submit comment. Click here to login.