Answers.Body: <p>It can be programmed, but it requires specialized equipment</p>
  
  <p>Here is one connected to a circuitboard 
  <a href="https://i.sstatic.net/cgCFw.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/cgCFw.jpg" alt="enter image description here"></a></p>
  
  <p>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.</p>
  
  <p>Searching the number on the chip (39VF020) reveals it's a simple flash memory chip.</p>
  
  <p>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.</p>
  
  <p>(<a href="https://www.eurobricks.com/forum/index.php?/forums/topic/138680-prototype-lego-sound-brick/" rel="nofollow noreferrer">by mpfirnhaber on Eurobricks</a>)</p>
  
  <p>This not LEGO related hobby store can make them with custom sounds 
  <a href="http://www.topdragonhk.com/eshowshop.asp?id=47" rel="nofollow noreferrer">TopdragonHK</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-09-29T22:51:56.263Z
Answers.LastActivityDate: 2017-09-29T22:51:56.263Z
Answers.UserDisplayName: Syberion
Body: <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=55206c04#T=S&amp;O=%7B%7D" rel="nofollow noreferrer">Regarding this component</a></p>
  
  <p>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?</p>
  
Tags: <customization>
Title: Programmable sound bricks
UserDisplayName: Michael Verschaeve
ThreadText: # Programmable sound bricks
  
  (Asked by: username_0 on 2017-04-30)
  
  [Regarding this component](https://www.bricklink.com/v2/catalog/catalogitem.page?P=55206c04#T=S&O=%7B%7D)
  
  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?
  
  **Tags:** customization
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2017-09-29. Score: 2 | Accepted answer
  
  It can be programmed, but it requires specialized equipment
  
  Here is one connected to a circuitboard
  [![enter image description here](https://i.sstatic.net/cgCFw.jpg)](https://i.sstatic.net/cgCFw.jpg)
  
  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](https://www.eurobricks.com/forum/index.php?/forums/topic/138680-prototype-lego-sound-brick/))
  
  This not LEGO related hobby store can make them with custom sounds
  [TopdragonHK](http://www.topdragonhk.com/eshowshop.asp?id=47)
  
  
  ---
  
  