About Us

We build tools to analyze vocal signals. Although developed primarily for singing teachers to help their students improve, our products are used by voice pathologists and other fields. Our software and hardware are used in hundreds of music departments around the world, and we are on the forefront of researching how to teach vocal technique.

Take a look at our products and who uses them and contact us if you'd like more information.


Many teachers have been stumbling in the dark looking for good resonance adjustments. A systematic approach like the one presented here can prevent people from exploring methods that simply cannot work.

Paul Kiesgen Indiana University