[ intrusive sounds ] 

Collection of sound incidents affecting our natural environment

Patapsco flight intrusion 4-12-2021

Recorded at 5:08pm on 4-12-2021 at Patapsco Valley State Park - Soapstone Trail Rolling Road entrance. 

This is the sound of an aircraft. You can hear the aircraft for greater than 50 seconds. The aircraft took the ambient noise of the environmental recording from -21.4 RMS to -6.8 RMS. I used root mean square averaging because it is more appropriate to reflect how the human ear perceives a change in sound level. 

It took the integrated loudness level of the recording from -50 LUFS to -29 LUFS. This is a loudness change of almost twice the average dynamic range of a professionally mastered classical musical recording. See the analysis below.