Code needs to be generated first.
Example file: github.com/PaulStoffregen/Audio/tree/master/examples/Synthesis/WaveformsModulated
Pop it into waveformMod1.arbitraryWaveform(Untitled, 12543.86);
Instructions: Tap or click button when ready. Tap and hold or drag for positive and negative amplitudes. Version 0.8RC3. mobile updated: tested mouse and iphone5s! myWaveform.ino. Try 1/8 Horizontal Flip — checked and unchecked. Index fuctions are working but right align one is touchy on ratios. Working on hamburger menu and media queries. Export for teensy is supported.