Describe the waveforms of pure tones, complex tones, and noise.

To describe the waveforms of pure tones, complex tones, and noise: 1. Pure tones have simple sinusoidal waveforms with a single frequency. They are smooth, continuous, and repeating patterns that oscillate between maximum and minimum amplitude, looking like a regularly undulating curve with even peaks and valleys. 2. Complex tones have waveforms created by combining multiple sinusoidal waves with different frequencies and amplitudes, resulting in a more intricate pattern with multiple peaks and valleys of varying heights and widths. These waveforms are formed by the harmonics, which are integer multiples of a fundamental frequency. 3. Noise waveforms are random and chaotic with no discernible patterns and no repeating structures. They contain many different frequencies and amplitudes, displaying a seemingly random distribution of peaks and valleys with no observable order or structure. When comparing these three waveforms, pure tone waveforms are the simplest with a single frequency, complex tone waveforms are made up of several harmonics that create more elaborate patterns, and noise waveforms are completely random and chaotic. Each of these waveforms is associated with different types of sounds and represents distinct categories of audio signals.