Audio Package
As of Version 11, most of the functionality of the Audio package is built into the Wolfram System. »
Waveform — Sound object representing a wave of given type, frequency and duration
Sinusoid ▪ Square ▪ Triangle ▪ Sawtooth ▪ Overtones
ListWaveform — waveform of a specified frequency spectrum
AmplitudeModulation — amplitude-modulated sinusoidal waveform
FrequencyModulation — frequency-modulated sinusoidal waveform