diff --git a/gambatte_qt/src/framework/audioengines/alsaengine.h b/gambatte_qt/src/framework/audioengines/alsaengine.h
index 2b37780..70b984d 100644
--- a/gambatte_qt/src/framework/audioengines/alsaengine.h
+++ b/gambatte_qt/src/framework/audioengines/alsaengine.h
@@ -41,7 +41,7 @@ public:
 	int write(void *buffer, unsigned samples, BufferState &preBufState_out, RateEst::Result &rate_out);
 	const RateEst::Result rateEstimate() const { return est.result(); }
 	const BufferState bufferState() const;
-	void pause() { prevfur = 0; est.init(est.result().est); }
+	void pause() { prevfur = 0; est.reset(); }
 	QWidget* settingsWidget() { return conf.settingsWidget(); }
 	void acceptSettings() { conf.acceptSettings(); }
 	void rejectSettings() { conf.rejectSettings(); }
diff --git a/gambatte_qt/src/framework/audioengines/ossengine.h b/gambatte_qt/src/framework/audioengines/ossengine.h
index 10c11cb..f8af5e8 100644
--- a/gambatte_qt/src/framework/audioengines/ossengine.h
+++ b/gambatte_qt/src/framework/audioengines/ossengine.h
@@ -40,7 +40,7 @@ public:
 	int write(void *buffer, unsigned samples, BufferState &preBufState_out, RateEst::Result &rate_out);
 	const RateEst::Result rateEstimate() const { return est.result(); }
 	const BufferState bufferState() const;
-	void pause() { prevfur = 0; est.init(est.result().est); }
+	void pause() { prevfur = 0; est.reset(); }
 	QWidget* settingsWidget() { return conf.settingsWidget(); }
 	void acceptSettings() { conf.acceptSettings(); }
 	void rejectSettings() { conf.rejectSettings(); }