Announcement

Collapse
No announcement yet.

Octave Frequency Band & Interpretation

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Octave Frequency Band & Interpretation

    Any Noise engineers out there? Or anyone with experience?

    I'm trying to figure out how to calculate the unweighted octave band sound power level for a 700MW steam Boiler. I have a table with the octave frequency bands (saying you subtract certain amounts for certain octave frequency bands to get the unweighted sound power level) and the formula for the A-weighted sound power level:

    Lw = 72 + 15logMWe

    where MWe is the electrical generating rating of the unit (700 MW)

    So I get Lw = 114.67 dB (sounds right to me)

    Yet I'm not sure how to read the table so I can find the right value to subtract.

    Anyone able to help?
    Nothing from something.

  • #2
    The answer is 42
    You put the c*nt in country run

    Comment


    • #3
      So you are only trying to convert an A-weighted SPL to unweighted? Shouldn't be that hard, but why?

      Comment


      • #4
        700MW boiler.

        Hardcore

        I should know the answer seeing as half of my work is a noise consultancy,

        unfortunatly for you,

        I work on the fun side of the road

        (\__/)
        (='.'=)
        (")_(")

        Comment


        • #5
          Originally posted by The Faz View Post
          So you are only trying to convert an A-weighted SPL to unweighted? Shouldn't be that hard, but why?
          I just don't know how to read the table. I'm assuming as it is broken into octaves, for each octave I will get a different unweighted reading.

          Just doing some research for uni - don't want the answer just wanted to confirm I am reading the table right.
          Nothing from something.

          Comment

          Working...
          X