here is an early test of a voice-based drawing toy I made today (you need an active or built-in mic) :: low volume curves counterclockwise, medium volume is straight, high volume curves clockwise :: pretty tough to control :: below are some screen grabs of faces i tried to draw-hum (click to enlarge). Send me what you come up with, or better yet send me a video of you "drawing" and the final result!...(PS - the file is 1000x1000 pixels, and blank when you start - drawing begins from the center - so you may have to scroll if you have a tiny screen - also, click to reset) NOTE : although it is perhaps the most accessible to the public, this is by no means the first toy to play with the relationship between sound and drawing. Messa di Voce (below), by Golan Levin, Zachary Lieberman, remains the gold standard for this type of work, and i was reminded that my voice drawing app resembles a portion of their application. They have a line guided by pitch (360 degree mapping) and are more focused on expressive drawings (i spoke with Golan about this), while I am still in search of a tool that can be used to draw representational forms...although I'm sure with a bit of tweaking Golan and Zach could produce something that did just that.