umatrix
Mechanical
- Jul 18, 2013
- 62
Hello Eng-Tips,
I am testing a component in an anechoic chamber. The data is reported in dBA.
First test results in a 55 dBA level
Second test is 59 dBA
My question is what is considered significant or noticeable with dBA? I understand that dBA is frequency weighted, but not sure how to report 4dBA change , significant or not ?
I am testing a component in an anechoic chamber. The data is reported in dBA.
First test results in a 55 dBA level
Second test is 59 dBA
My question is what is considered significant or noticeable with dBA? I understand that dBA is frequency weighted, but not sure how to report 4dBA change , significant or not ?