The AnalyserNode interface represents a node able to provide real-time frequency and time-domain analysis information. It is an AudioNode that passes the audio stream unchanged from the input to the output, but allows you to take the generated data, process it, and create audio visualizations.
Tux Paint is a free drawing program for children ages 3 to 12. Tux Paint is a computer literacy drawing activity. It combines an easy-to-use interface, fun sound effects, and cartoon mascot who guides children as they use the program.