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Mapping and Visualization with SuperCollider by Marinos Koutsomichalis

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Time domain representation

Audio is a signal, any kind of sonic representation being a function of some sort. Signals in the time domain are conceptualized as streams of information against the constant flow of time. However, audio signals are not necessarily time-domain specific. In the time domain, digital signals are functions of discrete (that is, not continuous) amplitude values per unit time (measured in samples). A constantly updated graph of these values (typically in the vertical axis) against time is just a visualization of this signal's waveform, which is therefore a time-domain specific representation.

To understand what exactly a waveform represents, consider how audio signals are translated to physical sound and vice versa. To represent ...

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