diff --git a/tests/domain/runtime-audio-system.test.ts b/tests/domain/runtime-audio-system.test.ts
index 198cd2f4..a78b1dbf 100644
--- a/tests/domain/runtime-audio-system.test.ts
+++ b/tests/domain/runtime-audio-system.test.ts
@@ -6,8 +6,8 @@ describe("computeSoundEmitterDistanceGain", () => {
   it("keeps full volume near the emitter and eases smoothly to silence at max distance", () => {
     expect(computeSoundEmitterDistanceGain(4, 6, 24)).toBe(1);
     expect(computeSoundEmitterDistanceGain(6, 6, 24)).toBe(1);
-    expect(computeSoundEmitterDistanceGain(12, 6, 24)).toBeGreaterThan(2 / 3);
-    expect(computeSoundEmitterDistanceGain(18, 6, 24)).toBeLessThan(1 / 3);
+    expect(computeSoundEmitterDistanceGain(12, 6, 24)).toBeCloseTo(0.198, 3);
+    expect(computeSoundEmitterDistanceGain(18, 6, 24)).toBeCloseTo(0.012, 3);
     expect(computeSoundEmitterDistanceGain(24, 6, 24)).toBe(0);
     expect(computeSoundEmitterDistanceGain(30, 6, 24)).toBe(0);
   });