To use this program, all you need to do is press the button for whichever signal you want to activate. Additionally, you can press the "CANCEL" button to turn off the tone. The program is set up so that instead of having to press "CANCEL" and then activate another signal, all you need to do is press on another signal, and the tone cuts out and begins playing the other tone. These tones were made on Audacity, and are mocks of the Whelen Engineering siren sounds.
I used tones I made on Audacity that are mocks of the Whelen Engineering siren tones, and downloaded them onto Scratch to make this. The reason I made this is for if you want to use a setup where you have a speaker plugged into your device, you can play a tone that has a duration of 1 minute (unless manually deactivated), and automatically shuts off. Also, yes I am aware of the scratchy (heheh) noise it makes when playing the audio, I'm trying to figure out how to fix that.
