The dolphin decoder is a device made by Aviva used to help the kratt brothers speak dolphinese to a dolphin pod. It was used by the kratts to decipher dolphin clicking and whistles. It was first used to communicate with dolphins Click and Whistle.


Aviva revealing her latest invention in Speaking Dolphinese


  • Deciphering high-pitched whistle-clicks
  • Dolphin sound data-base
  • Underwater microphone


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