iMPC App 101: Triggering the iMPC pads with a Class Compliant MIDI device

 

Triggering the iMPC pads with a Class Compliant MIDI device

Class compliant USB audio interfaces, MIDI controllers and keyboards can be connected to the iPad using the Apple iPad Camera Connection Kit. A class compliant device is one that doesn't require extra drivers to connect your Windows or Macintosh computer, or to your iPad. Class compliant devices use drivers which are built into the host (i.e. the computer or the iPad) operating system. 

To find out if your USB audio or MIDI device is class compliant, check the manufacturer's web page.  If it connects automatically to any computer without requiring you to install drivers from a website or a disk, it is probably class compliant.

Many USB devices draw their power right from the USB cable that connects them to their host (a computer or an iPad).  The iPad can also supply power to connected USB devices.  The USB ports on computers supply 5V and 100mA-500mA of power.  However, through the course of several updates and revisions, Apple has decreased the amount of electrical power the iPad is allowed to supply connected USB devices.

This means that some devices that draw only a little power can power themselves off of what the iPad supplies.  However, devices that require more power may not find the iPad USB connection sufficient.  Furthermore, Apple can and has altered how much power the iPad can offer connected devices.  So, what may have worked in the past, may not necessarily work in the future.
 
If the device you are connecting requires more power than the iPad can supply, connect it to an AC powered USB hub.  Powered USB hubs have AC power adapters that connect them to an electrical socket on the wall.  This will help ensure any connected devices have enough power to operate.
 
Contents

 

Akai iMPC MIDI Notes

Most hardware MIDI controllers have an editing software included with the hardware. Please check your hardware manufactures website for this program. Run your controller editor software to assign the notes below to your device. All notes below are on Channel 12

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Assigning MIDI using the MIDI Learn Feature

To Assign the pads using MIDI Learn you will need to download Retronyms free App Tabletop.

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  1. Download and open the Tabletop App.
     
  2. Create a new project.
     
  3. Add the Akai iMPC App to your session by clicking the keyboard in the top right corner. Find the Akai iMPC in the drop down list.
     
  4. Touch and drag the iMPC into your session.

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  5. Select the Akai iMPC to load the App.
     
  6. In the top right corner of the iMPC tap the wrench icon

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  7. From the drop down list select MIDI Learn
     
  8. Touch the pad in the iMPC App you want to assign then press your pad on the hardware. 

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  9. Complete this process for all 16 pads. 
     
  10. Press done once you have assigned all of your pads. 

 

Triggering the iMPC App with an Akai LPD8

To use the LPD8 with the iMPC App follow the steps below.  Pads 1-8 will be default on Program 1, and  Pads 9-16 in the iMPC App will be assigned to Program 2.

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  1. Download the LPD8 preset files here
     
  2. Run the Setup to install the LPD8 Editor Software.
     
  3. Connect your LPD8 to an available USB port.
     
  4. Run the LPD8 Editor, Select the LPD8.
     
  5. Click Load Preset.
     
  6. Select the Program 1 - iMPC Pads 1-8 preset file.
     
  7. Click Commit – Upload.
     
  8. Click Load Preset.
     
  9. Select the Program 2 – iMPC Pads 9-16 preset file.
     
  10. Click Commit – Upload.
     
  11. Disconnect the LPD8 from your computer.
     
  12. Connect your LPD8 to your iPad with the Apple Camera Connection Adapter.
     
  13. Open iMPC App.
     
  14. You can now use the Akai LPD8 to trigger the pads of the iMPC App.

 

Triggering the iMPC App with an Akai MPKmini

To use the MPKmini with the iMPC App follow the steps below.  Pads 1-8 will be default on Pad Bank 1, and Pads 9-16 in the iMPC App will be assigned to Pad Bank 2.

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  1. Download the MPKmini preset files here
     
  2. Run the Setup to install the MPKmini Editor Software.
     
  3.  Connect your LPD8 to an available USB port.
     
  4. Run the LPD8 Editor, Select the MPKmini.
     
  5. Click Load Preset.
     
  6. Select the iMPC - Akai MPKmini Preset file.
     
  7. Click Upload.
     
  8. Disconnect the MPKmini from your computer.
     
  9. Connect your MPKmini to your iPad with the Apple Camera Connection Adapter.
     
  10. Open iMPC App.
     
  11. You can now use the MPKmini to trigger the pads of the iMPC App.

 

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