ACTIVE NOISE CONTROL SYSTEM


  1. OUTLINE


    1. An active noise control system is used to reduce muffled sounds from the engine and propeller shaft, ensuring high levels of quietness in the cabin.

    2. The active noise control system uses a microphone to detect the muffled sounds emitted in synchronization with the speed of the engine and propeller shaft, and then outputs electronic control sounds with an inverted phase to the muffled sounds through the audio speakers, reducing the muffled sounds.

      Figure 1. Active Noise Control System Image

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      *1 Active Noise Control Microphone *2 No. 1 Speaker with Box Assembly
      *3 No. 3 Speaker with Box Assembly - -
      *a Electronic Control Sounds *b Muffled Sounds
      *c Muffled Sounds Reduction Area *d This illustration is only for explanatory purposes.

      Figure 2. Principle of Muffled Sounds Reduction

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