An elimination system which is suitable for diverting dental instrument noise is provided. The system comprises an audio player, a sound sensor and a controller. The sound sensor is used for sensing dental instrument noise, so as to output a sound sensing signal. The controller is electrically coupled to the audio player and the sound sensor, so as to control the audio content broadcasted by the audio player according to the sound sensing signal outputted by the sound sensor.一種牙科器械噪音消除系統,此系統包括有聲音播放器、聲音感測器以及控制器。聲音播放器係播放聲音內容。聲音感測器係感測牙科器械噪音而輸出聲音感測訊號。控制器電性連接至聲音播放器與聲音感測器,其係依據聲音感測器輸出的聲音感測訊號來控制聲音播放器所播放的聲音內容。10‧‧‧消除系統110‧‧‧聲音播放器120‧‧‧聲音感測器130‧‧‧控制器130-1‧‧‧音源儲存單元130-2‧‧‧分貝值儲存單元130-3‧‧‧處理器140‧‧‧電源供應器
