[1] The news about the noise was first shared with Dave Nemeyer by a Forest Grove resident, who posted a video of it on the city's Facebook page.

[2] The Washington Post described the noise as sounding like a "giant flute played off pitch", car brakes, or a steam whistle.

[3] NBC News described it as "akin to a bad one-note violin solo broadcast over a microphone with nonstop feedback".

The final point was plotted on Dawes' map on February 27, 2016,[4] and the police and fire departments closed the case.

Dave Nemeyer, the Forest Grove Fire Marshal, suspected the noise to be "a faulty attic fan or heat pump.