Revert "change value in test_corret_rms_values"
Revert "change value in test_corret_rms_values"

This reverts commit 49aafd44cf7c75499579ac4352c62036153bae2a.

abigailStev/stingray,pabell/stingray,evandromr/stingray,StingraySoftware/stingray