Here is a link to a tutorial on the “plot spectrum” function in Audacity. The link is halfway through the video, as the first part of the video is on a slightly different topic.
Mr. Renwick's Online Classroom
Acknowledging that at Templeton Secondary School in Vancouver, Canada, we work, learn, and play on the unceded, traditional, and ancestral territory of the Musqueam, Tsleil Waututh, and Squamish Coast Salish peoples.