It comes in several versions, each producing a different sound when pushing the button, e.g. a barking dog or doorbell. However, the sound is "fixed", is there any way to replace the sound with one of your own choosing?
asked Apr 30, 2017 at 8:31
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1 Answer
It can be programmed, but it requires specialized equipment
Here is one connected to a circuitboard
The external board is wired straight to the internal board. It plays the "doorbell then dog bark" sound from the brick in set 5771 - Hillside House.
Searching the number on the chip (39VF020) reveals it's a simple flash memory chip.
The board (AMA9AA) brings up pages from a Chinese company, Alpha Microelectronics, thatseems to specialize in voice/sound synthesizing hardware. There are references to software called EZSpeech and FlashWriter. There are download links for the software on their website, but they are password protected.
(by mpfirnhaber on Eurobricks)
This not LEGO related hobby store can make them with custom sounds TopdragonHK
