feat(dsp): add cos() stateless oscillator

thi-ng · Dec 17, 2020 · 276c6b7 · 276c6b7
1 parent 88edaac
commit 276c6b7
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/packages/dsp/src/osc/cos.ts b/packages/dsp/src/osc/cos.ts
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+import { TAU } from "@thi.ng/math";
+import type { StatelessOscillator } from "../api";
+
+export const cos: StatelessOscillator = (phase, freq, amp = 1, dc = 0) =>
+    dc + amp * Math.cos(phase * freq * TAU);