This is a "Sound Graph Maker", this makes a sound on the noise. For this it needs your microphone turned on. You may be thinking that I copied from the redemade project, but it's not true. I have made it myself! This is for sound testing in Scratch 2.0(though, I have made this in Scratch 1.4) Down you can see a variable, it tells the "Status", there are three types: 1) Here is silence!: Loudness is 0 2) You are not loud! Good!: Loudness is greater that 0 but smaller than 30. 3) Hey, you're shouting: Loudness is gereater that 30. This can even make a graph of background noise!