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'''Repeating waveforms''' is a technique for [[Digital data|digital]] [[Sound synthesis|synthesis]] common in [[Personal computer|PC]] [[sound cards]].

The waveform amplitude values are stored in a [[Buffer (computer science)|buffer]] memory, which is stored in a [[Phase (waves)|phase]] generator. When addressed, the retrieved value is used as the basis of the synthesized sound.

In the phase generator, a value proportional to the desired signal frequency is periodically added to an [[Accumulator (computing)|accumulator]]. The high order [[bit]]s of the accumulator form the output address, while the typically larger number of bits in the accumulator and addition value results in an arbitrarily high [[frequency]] [[Temporal resolution|resolution]].<ref>{{Cite web |last=Hagler |first=Marian O |date=17 April 2008 |title=A PC with sound card as an audio waveform generator, a two-channel digital oscilloscope and a spectrum analyzer |url=https://www.researchgate.net/publication/3050713 |website=ResearchGate}}</ref>

==References==
{{Reflist}}

{{DEFAULTSORT:Repeating Waveforms}}
[[Category:Digital audio]]

{{Sound-tech-stub}}

Repeating waveforms - Revision history

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