The PWM Generator can generate pulse width modulation signals in real time. The frequency as well as the duty cycle and the amplitude can be changed instantaneously.
You can save 4 memory presets and the software supports multiple sound cards. This software can be very useful for simulations of electronics controls of e.g. motors, fans, lights. The PWM signal is put out from the computer sound card and a standard audio amplifier can be used as the driver for the PWM controlled device.