Introduction to MIDI and Computer Music: Interactive Application: Acoustics 2
This application covers waveform types, dynamic spectra, aperiodic waveforms, the harmonic series, and the relationship between pitch and frequency.
Download the application as a .zip archive, and uncompress it if necessary. It will probably be in your Downloads folder. You can run it from anywhere.
When you first launch this, you will see an alert warning you that the application was downloaded from the Internet. Just say okay.
If you launch the app and see only its menu bar, but not its window, then quit the app and make sure the app name is the original one: “Acoustics 2”. (The name can change if you download more than one copy of the app into the Downloads folder.)
This app has issues:
To kill the zombie app without restarting the computer, right-click on the Taskbar at the bottom of the screen, and choose Start Task Manager. Click the Processes tab at the top of the Task Manager window. In the process list, look for the name of the program in question (e.g., “Acoustics 1.exe”). Click on this name to select it, then press the End Process button (lower right corner of the window), and confirm it. Be careful in the Task Manager: you can kill processes that you really shouldn’t.