How to change the MP3s on the Touch Board
Follow this guide to play your own MP3 files with the Touch Board
One of the Touch Board’s defining feature is to play music, a recording or a sound when touching the board’s electrodes, acting as an MP3 player. The Touch Board comes pre-loaded with an audio guide to help you familiarise you with all its features. The audio guide is stored on the board’s microSD card and changing these files is straightforward, no programming required!
The key is to follow the appropriate naming structure for your MP3s to ensure each electrode will trigger the right sound. All you need is a microSD card reader and some great sounds!
Step 1 Prepare the MP3 files
The first step is to select the sounds that you want your Touch Board to play. You may want to record your own sounds, or you may already have a library of audio to choose from. YouTube is a great resource for finding MP3 music, you can download a YouTube video as an MP3 file with a converter. Make sure that each file is an MP3 file. If they aren’t MP3 format, you can always use an online MP3 converter. Note that the file size is important, if it’s too large, it takes longer to load.
In order to use the MP3 files on the Touch Board, you need to rename them. The Touch Board follows a naming structure, where TRACK000.mp3 is for electrode E0, TRACK001.mp3 for E1 and so on, up to TRACK011.mp3 for E11.
In this example, we have two tracks that we want to use: “Bleat.mp3” and “Bluejay.mp3”. We want to use them with the first two electrodes, E0 and E1. So we rename the tracks to TRACK000.mp3 and TRACK001.mp3.
Step 2 Copy the files onto the Touch Board
Take the microSD card out of the Touch Board by pushing it in, it should pop out.
Put it inside the microSD card reader and put the reader inside your computer. The SD card should show up as “TB Audio”. Have a look inside the folder, you will see all kind of files, including the aforementioned TRACK000.mp3, TRACK001.mp3 and so on.
Copy-paste the new sounds onto the SD card, simultaneously removing the old TRACK000.mp3, TRACK001.mp3. Don’t worry, you can always download them again if you need them again. Once they are copied over, remove the SD card from your computer.
Step 3 Test the new tracks
Pop the microSD card back into the Touch Board, connect some speakers or headphones to the Touch Board and turn the Touch Board back on. Try touching electrode E0 and E1, you should hear the new for each electrode!
Step 4 Next steps
Now that you know how to change the audio file for each electrode on the Touch Board, you can get creative and connect all sorts of conductive materials to the Touch Board’s electrodes. You can use the Electric Paint to paint your very own sensors as well and give an audiobook a new interpretation.
If you want to edit a music file, we recommend the app Audacity. You can use it to trim and adjust the amplitude of a file. If you want to play video files with the Touch Board, check out our video player tutorial.