What is the difference between the volume unit DB and DBA?

What is the difference between the volume unit DB and DBA?

1 thought on “What is the difference between the volume unit DB and DBA?”

  1. DB is a unit of noise. It is an energy unit, the name is decibels. DB (A) means that when the noise meter measures the noise, the actual noise value is measured at an equivalent sound level A!
    one is its name and the actual value gold coins are given to me.

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