*WARNING: This film contains flashing images.*
*Some of the frequencies are quite low, so I recommend you to watch the film with headphones, but be careful with the sound volume.*
This film is the result of a 30 days challenge. It was originally published on a daily basis on Twitter—one-minute video per day from November 1 to 30 (2017). The sound was made in Audacity using tone and noise generators. Images are the audio files themselves saved as JPG, so what you see is what you hear.
You can find the original 30 one-minute films at my Twitter account: @null66913