The sounds need to be in MP3 format, the Touch Board will not register them if the sound files are in any other format. Make sure you have renamed your file names correctly. You can trigger 12 track but they need to be named TRACK000.mp3, TRACK001.mp3, TRACK002.mp3, up to TRACK011.mp3. Check out the tutorial http://www.bareconductive.com/make/changing-the-mp3s-on-the-micro-sd-card/ for more information.
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