How do I reinstall the factory presets?

You can download the factory presets on the Resources page of our website.

Instructions:

Step 01: Turn off CHOMPI if not already off

• You should never try to remove the microSD card from CHOMPI while it is powered on

Step 02: Remove microSD Card from CHOMPI

• Carefully remove the microSD card from the slot located on the right side of the rear panel (next to the handle)
• Tip: the slot is designed with a round hole in the center that nicely fits a 3.5mm cable end, ballpoint pen or something similar. The card is spring loaded so watch for any flying SD cards ;)

Step 03: Insert microSD Card into your Computer

• Using a standard microSD card adapter, load the card onto your computer just like any other external hard drive or storage device

Step 04: Backup your files (Optional, but recommended)

• Now is a great time to take a second and backup your files and presets that are currently being stored on the card
• It’s good practice to select all of the files on in the root directory of the card, and simply copy them into a new folder on your computer
• The audio files (.wav files) are the priority, but you may also want the other firmware files just in case (.bin, .txt, .json files)

Step 05: Organize your files

• Closely inspect the current number of samples saved on the card, as well as their file name
• File Naming Structure as follows:
  • 2 different types of engines - JAMMI (chromatic) & CUBBI (1-shot)
  • Each with 3 banks a piece
    • Bank A = Purple
    • Bank B = Gold
    • Bank C = Teal Blue
  • Each Bank contains preset slots numbered #1-14
• EX: Chromatic Engine, Bank B (Gold), Preset Slot #4 would be:
  • "jammi_b4.wav"
• If you are planning to import any new samples onto a currently used preset slot, you will need to first delete the file you're intending to replace
• NOTE: For every sample slot, there are actually two audio files. One is the standard speed file, and the other is a double speed file that gets created in the sample optimization process (see below)

Step 06: Copy New Samples onto SD Card

• Move/Copy any samples that you wish to use with CHOMPI onto the root directory of the SD card (NO FOLDERS)
• Samples must be formatted as: 16bit 48Khz STEREO .wav
• Be sure to properly name each file to match the appropriate Engine, Bank, and Preset Slot you wish to save it to
• Remember... No Duplicate File Names

Step 07: Eject microSD card from your computer

• Safely remove the microSD card from your computer by using the "Eject" option

Step 08: Reinstall microSD Card Back into CHOMPI

• Carefully reinsert the microSD card back into CHOMPI
  • WARNING: due to the way the panel enclosure is designed, it is possible to miss the card slot and drop your SD card into the enclosure. If this happens, simply remove one of the side panels and shake the SD card out

Step 09: Power On CHOMPI and Enjoy the LED Lightshow

Depending on how well your battery is charged, it might be a good idea to plug in CHOMPI to a USB power source for this next part.

• Flip the power switch towards the lightning bolt icon to boot up CHOMPI

• Wait for the LED animation to complete
  • Every time CHOMPI boots up, it checks the SD Card to see if there are any new samples that need to be optimized. If it recognizes new files, it will launch the optimization process (this is indicated by the first LED “glowing” animation on bootup)
  • Depending on the size/length of the files you are importing, this process may take a couple mins... But this process is only necessary the first time a new file is imported
  • Once you see the “rainbow” animation on the LED’s, you should be good to go!
  • NOTE: if CHOMPI does not recognize the SD card when it boots up, the upper row of LEDs will blink RED. If this happens, power off the device, re-insert the SD card and try again