![]() So, frequencies, their relative amplitudes, and how the relative amplitudes change over time all contribute to the timbre of the sound. water splashing, leaves rustling, etc.) and for musical sounds (e.g. This is true for non-musical sounds (e.g. ![]() When we hear the sum of those frequencies, we perceive them as a sound. In actuality, what we hear is a sum of frequencies, and each one is a different amplitude. To better understand additive synthesis, it helps to look at what sounds are actually made of. At the most fundamental level, the noises we hear everyday are not made of a single frequency, or a single pure sine wave. ![]()
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