MIDI mode on Android: a complete guide for musicians and developers

Musicians, producers and even just fans of experimenting with sound have long appreciated the possibilities MIDI technologies on computers. But few people know that modern smartphones also support work with Android also support working with MIDI devices - from keyboards to drum machines. This opens up new horizons for creating music on the road, recording ideas or even live performances directly from your phone.

However, many users face problems: how to turn it on MIDI mode on Android, what applications are needed to work, and why the smartphone does not see the connected keyboard? In this article we will break everything down - from basic concepts to advanced settings. You will learn how to turn your device into a full-fledged music station, even if you have never worked with MIDI mode on Android before. Let us note right away: despite the fact that support appeared in data-i="43">(2015), many manufacturers still do not implement it correctly. Therefore, some functions may depend on the smartphone model, firmware version, and even on the cable used. But don’t worry - we’ll tell you how to get around the problems. Android-device into a full-fledged music station, even if you have never worked with it before MIDI.

Let us note right away: despite the fact that support MIDI appeared in Android 6.0 Marshmallow (2015), many manufacturers still do not implement it correctly. Therefore, some functions may depend on the smartphone model, firmware version, and even on the cable used. But don't worry - we'll tell you how to work around the problems.

What is MIDI and why do you need it on Android

MIDI (Musical Instrument Digital Interface) is a protocol that allows electronic musical instruments, computers and other devices to exchange data about musical notes, sound control and synchronization. Unlike audio, MIDI does not transmit the sound itself, but only instructions what notes to play, with what strength and duration.

On Android this protocol is used for:

• 🎹 Connections MIDI keyboards (for example, Akai MPK Mini or Korg nanoKEY) for recording music in DAW applications such as FL Studio Mobile or BandLab.
• 🥁 Control of virtual drum machines and synthesizers via a touch screen.
• 🎛️ Automation of lighting equipment or other devices on stage (via MIDI CC messages).
• 🤖 Development of music applications with support for external controllers.

The main advantage MIDI on Android is mobility. Instead of carrying a laptop with you, you can record tunes on the go, edit projects in the subway, or even perform with live sound by connecting your smartphone to an amplifier. In addition, many modern Androiddevices (for example, Samsung Galaxy S23 Ultra or Google Pixel 8 Pro) have sufficiently powerful processors to process MIDIdata without delays.

But there are also nuances. For example, not all smartphones support USB OTG (necessary for connection of most MIDIdevices), and some applications may require root access for full operation. We will talk about this further.

How to check if your Android supports MIDI

Before buying MIDI controller or cables, make sure that your device is generally capable of working with MIDIThis is how it goes. do:

1. Checking the Android version:

Open Settings → About phone → Android version. For full operation MIDI you need a version 6.0 (Marshmallow) or later. you Android 5.0 or older - update the firmware or consider buying a new smartphone.

2. Availability of USB OTG:

Most MIDI devices connected via USB, so your phone must support USB On-The-Go (OTG). You can check this:

• 🔍 In the device specifications (on the manufacturer's website).
• 📱 Using the application USB OTG Checker (available in Google Play).
• 🔌 By connecting any USB flash drive via an adapter - if the phone sees it, it means OTG it’s working.

3. Checking MIDI API support:

Some manufacturers (for example, Samsung or Google) are fully implemented Android MIDI API, while others (especially little-known brands) may reduce functionality. To make sure that the API is available:

adb shell pm list features | grep midi

If the command returns android.software.midi , then there is support.

4. Test connection:

If you already have MIDI device, try connecting it via USB OTG adapter and open any application that supports MIDI (for example, Caustic 3 or Korg GadgetIf the device is detected -). great! If not, read the next section.

⚠️ Attention: On some devices Huawei and Xiaomi you may need to enable developer mode and enable software debugging USB so that MIDI devices are detected correctly.

How to connect a MIDI keyboard or controller to Android

So, you have made sure that your smartphone supports MIDI. Now let's take a look at how to connect an external device. There are three main ways:

1. USB connection (via OTG):

This is the most common and reliable method:

• 🔌 USB OTG adapter (for example, Anker USB-C to USB 3.0).
• 🎹 MIDI keyboard with USB output (most modern models support it).
• 📱 Smartphone with support USB OTG i MIDI API.

Connect the adapter to the phone, and then connect it to the keyboard. In most cases, Android automatically recognizes the device. If not, check the USB settings in the notification shade (sometimes you need to select the mode MIDI or Audio).

2. Connecting via Bluetooth (BLE MIDI):

Some modern MIDI devices (for example, Korg microKEY Air or Akai LPD8 Wireless) support connection via Bluetooth Low Energy (BLE). data-i="150">MIDI devices

• 🎧 No wires - convenient for live performances.
• 🔋 Less battery consumption compared to classic Bluetooth.

To connect:

1. Turn on Bluetooth on your smartphone.
2. Put MIDI device into pairing mode (usually hold the power button for a few seconds).
3. In the list of available devices, select your keyboard.
4. Open an application that supports BLE MIDI (for example, MIDI BLE Connect).

3. Connecting via a MIDI interface (5-pin DIN):

If you have an old MIDI device with connector 5-pin DIN, you will need an external MIDI interface (for example, iRig MIDI 2 or Roland UM-ONE mk2). It converts the signal into USB or Bluetooth, which can already be processed by a smartphone.

Make sure your smartphone supports USB OTG|Check version Android (at least 6.0)|Update the device firmware|Prepare adapters/cables|Install an application with MIDI support-->

The best applications for working with MIDI on Android

Without specialized software MIDI device useless. Fortunately, there are dozens of applications for recording, editing and playing music. We have selected the best of them for different tasks: Google Play there are dozens of applications for recording, editing and playback MIDI-music. We have selected the best of them for different tasks:

1. DAW (Digital Audio Workstations) - a powerful sequencer with support for synthesizers and effects. Suitable for creating tracks from scratch. — for full recording and arrangement:

• 🎛️ FL Studio Mobile - powerful sequencer with support MIDI, synthesizers and effects. Suitable for creating tracks from scratch.
• 🎹 BandLab - cloud DAW with free access to thousands of sounds. Ideal for collaboration with other musicians.
• 🎶 Caustic 3 - modular synthesizer with support MIDI-input. Good for experimenting with sound.

2. Synthesizers and drum machines — for live sound:

• 🥁 Korg Gadget 2 —a collection of virtual synthesizers and drum machines from the legendary brand Korg.
• 🎧 SunVox —a modular synthesizer with support MIDI and a unique interface.
• 🎚️ GrooveBox —a simple drum machine for creating beats in style hip-hop or electronic.

3. Utilities for MIDI —for configuration and diagnostics:

• 🔧 MIDI Monitor —shows all incoming/outgoing MIDI messages. Useful for debugging.
• 🔄 MIDI BLE Connect — allows you to connect MIDI devices to Bluetooth.
• 📡 Soundcamp —cloud DAW support MIDI and collaboration.

Most of these applications have free versions with limited functionality. For full functionality, you will need a premium subscription or a one-time purchase. For example, FL Studio Mobile costs about $15-20, but it is one of the most powerful DAWs for mobile devices.

⚠️ Attention: Some applications (for example Caustic 3) may conflict with energy-saving modes Android. If MIDI device turns off during operation, add the application to the battery optimization exceptions.

Setting up a MIDI device in Android: step-by-step guide

Even if Your device has been detected by the system; it still needs to be configured correctly in the application. Let's look at the process using an example FL Studio Mobile and MIDI keyboards:

1. Connect device via USB OTG or Bluetooth (as described above).

2. Open FL Studio Mobile and go to settings: Menu → Settings → MIDI Settings.

3. Enable the option Enable MIDI Input and select your device from the list.

4. Set up channels:

- If you have If you have a multi-channel keyboard, indicate which channels it will use (usually Channel 1 for melody, Channel 10 for drums).

5. Check the delay (latency):

- In the audio settings (Audio Settings), reduce the buffer size to the minimum (128 or 256 samples).

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-feature android:name="android.software.midi" android:required="false" />

PackageManager pm = getPackageManager;
boolean hasMidi = pm.hasSystemFeature(PackageManager.FEATURE_MIDI);

MidiManager midiManager = (MidiManager) getSystemService(Context.MIDI_SERVICE);
MidiDeviceInfo devices = midiManager.getDevices;

// Open the first one found. device
midiManager.openDevice(devices[0], new MidiManager.OnDeviceOpenedListener {
@Override
public void onDeviceOpened(MidiDevice device) {
// The device is ready for operation
}
}, null);

device.setOnMidiInputEventListener((MidiInputPort inputPort, final byte data, int offset, int count, long timestamp) -> {
// Processing incoming messages (for example, keystrokes)
});