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This was presented during the 26th edition of the ADAMCon in Cleveland, at 11 o'clock Friday July 25, 2014. Link Blog (download) : http://newcoleco.dev-fr.org/p4219/2014-07-19-draw-your-coleco-sound-effects.html DOWNLOAD CVSoundFX.zip Give it a try and if I see a clear interest to use this tool , new functionalities wilit will be part of the toolkit with some improvements. Story My previous presentations about the sound chip inside the ColecoVision console got some attention. Unfortunately, nobody seems to have done anything with this information. I was thinking : "Maybe this is too technical, I need an even more family friendly approach." For this year ADAMCon, I was invited to talk about sound effects and instead of showing again a bunch of numbers they might forget, I've decided to create this tool for everyone who want to have fun making their own Coleco sound effects. Technical Information Coded in Java 1.6, this tool allows to draw frequencies and volumes as you want and save your creation. It's simple and a lot of fun just giving it a try and say "I can do Coleco sound effects! Listen!" Please note that the resulting file ( .sfx ) is a text file with the following structure : MODE [0 = tone, 1 = periodic noise, 2 = white noise] SIZE [120 by default, number of entries ( period + attenuation ) in this file, 120 @ 60Hz = 2 seconds] START [0 by default, it's the index value where the selection starts] END [119 by default, it's the index value where the selection ends] sound data ( each period and attenuation values )