Sound Analysis 2: Final Verdict
After taking recordings from behind the wall, it seems that there is still a lot to do in order to reduce noise. It seems that the high frequencies, like those found around 4 kHz to 16 kHz are reduced on average, to a point where, a quick jumping from in front to behind the wall will have a significant change in noise levels. The main problem still continues to be the bass frequencies, from 40 Hz to 180 Hz, especially around the 60 Hz range. I would suggest that the next group focus on reducing the bass frequencies in order to create a quiet pocket park.
New Recordings From The NAFTA Super-Highway
I (Stephen Surlin) had previously done recordings and analysisfrom Huron Church road by the Lebel School of Visual Arts. The audio below is a mix of two recordings: the first is taken from behind the Lebel School where the sound of Huron Church is significantly quieter and even the faint chirping of birds can be heard in the background, the second part is taken from the front of the building by the Lebel Visual Arts Building sign.
The recordings work as a comparative analysis because they were recorded at the same level, therefore the difference in volume comes solely from an increase in environmental noise, rather than gain or attenuation from the recording device, which in this case was a high quality hand-held M-Audio Recorder.
Our team will be able to use this data to figure out what kind of noise we’re working with in the location of our “Pocket Park”