An oscilloscope is a tool for viewing audio waveform signals, how sound pressure waves vary in time. A spectrum analyzer is a tool for viewing the frequency content of a sound. Both of these tools are great for helping musicians gain a deeper understanding of the sounds they produce, while the use of music can help technologists gain a deeper understanding of their tools. In these videos, Jay Brockman of the University of Notre Dame shows how to use Soundcard Oscilloscope to visualize musical sounds.
This Instructable was developed as part of the WAVES project, which is exploring common ground between technology and music.