Investigate the Doppler effect. Animate the wave pattern, plot change in frequency vs. time, and listen to the Doppler shift.
Play musical instruments. Listen to them and observe their wave patterns and frequency spectra.

Tool Palette to play instruments, connect devices, and multiply and combine signals.	Media Palette includes rooms with option to select different media; connecting rooms; output devices; microphone; and velocity vector.
Instruments palette features several musical instruments and wave generator.	Measurement palette to record/play sound; display wave forms and spectra; and record frequency, sound level, and time; wavelengths and angles; and plot variables.