@@ -520,7 +520,7 @@ void Channel::Update()

 		uint32_t counter = this->modCounter + (this->modSpeed << 6);

 		while (counter >= 0x8000)

 			counter -= 0x8000;

-		this->modCounter += counter;

+		this->modCounter = counter;

 	}

 	if (bTmrNeedUpdate)