How does a half wave rectified sine sound like?

A half-wave rectified sine wave sounds like a series of pulses or "bursts" of sound. This is because the positive half of the sine wave is preserved, while the negative half is clipped off. This results in a waveform that is asymmetrical, with a steep rise and a slower decay. The sound of a half-wave rectified sine wave can be described as harsh, buzzy, and distorted. It is often used in electronic music to create sounds like sawtooth waves or square waves.