In some cases, harmonic distortion can reach relatively high levels before it begins to change the sound of an instrument. Harmonic distortion can be hard to detect and may even add warmth to some musical sources. Analog systems always add some harmonic distortion (measured as THD) but this distortion produces harmonics that fall directly on top of the harmonics that naturally occur in musical sources. The harmonics of a violin distinguish its sound from that of a trumpet. These harmonics give warmth and character to musical sources. Harmonic Distortion is Dominant in Analog SystemsĪll musical instruments and human voices produce a rich spectrum of harmonics (also known as overtones). Most importantly, we will look at the effectiveness of today’s solutions to these digital problems. We will examine how these differ from the distortion and noise in analog systems. To answer these questions, we will look at the root causes of distortion and noise in digital systems.
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