diff --git a/stereo_mix/stereo_mix.cc b/stereo_mix/stereo_mix.cc
index 4f5003f..64a3dde 100644
--- a/stereo_mix/stereo_mix.cc
+++ b/stereo_mix/stereo_mix.cc
@@ -104,7 +104,7 @@ void Init(void)
   __HAL_RCC_TIM3_CLK_ENABLE();
   htim3.Init.Prescaler = 24;
   htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
-  htim3.Init.Period = 128; // 8kHz
+  htim3.Init.Period = 128;
   htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
   htim3.Init.RepetitionCounter = 0;
   HAL_TIM_Base_Init(&htim3);