• USB MIDI Monitor 1
  • USB MIDI Monitor 2

USB MIDI Monitor

The USB MIDI Monitor lets you view all incoming MIDI events from your USB MIDI interface. The events are timestamped and the event type, MIDI channel and values are displayed in a scrollable table. For control changes, extra information is displayed if the control change is a known type like volume or panning.
Note that this app requires the following items:
* Android 3.2 or higher
* Tablet or phone with USB host support
* USB MIDI interface that works without drivers on Windows or OSX
* If your device has a micro-USB connector: a micro-USB to USB OTG cable (around 7 to 10 euro)
* No rooting or special drivers required!!

Tested Android devices:
* Allwinner A13
* Sony Tablet S
* Acer Iconia A200
* Acer Iconia A500
* Asus Transformer Prime TF201
* Asus Transformer TF101
* Asus EEE slider
* Sony XPeria S (with Android 4 update)
* Galaxy Note 10.1
* Galaxy S3
* Galaxy S4
* Galaxy S5
* Intenso 824
* Nexus 10
* Toshiba Excite

Tested USB MIDI interfaces / devices:
* Cakewalk / Roland UM-1G
* CME M-Key V2 Midi Keyboard
* Denon MC-6000
* Edirol UM-2EX
* EMU Xboard 61
* The 5 euro 'Hong Kong' interface (note: this one drops MIDI events if they are coming in too fast!)
* Korg Nanokey 2
* M-Audio KeyRig 49
* M-Audio Keystation Mini 32
* M-Audio Keystation 61
* M-Audio Oxygen II
* M-Audio Pro keys sono 61
* M-Audio MIDI One
* Roland HP302
* Yamaha Clavinova CVP-605

If you have more devices or interfaces that work, please drop me an email.

Category : Music & Audio

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Reviews (29)

Ril. B. Oct 2, 2021     

Works perfectly for the Novation Launchpad X, and helped me figure out some things for a macro system I was working on. Also, add S20 to the list of supported devices, because it seems to be working fine on mine. Honestly, the only way I could see this app being any better was if there was an option to see the raw hexadecimal and/or decimal of the message recieved.

CJ. B. Nov 16, 2021     

Gonna give 4 because out of a whole bunch it was the only thing that actually registered MIDI signals from my poor man's edrum module via USB 2.0 to USB C adapter. Couldn't do much else though, kept stating it was developed for an older phone, check updates Infinity.

Gin. B. Jan 24, 2022     

No midi events were shown when using a USB-C to USB-C cable from my MacBook where other synth apps were working fine with this setup.

Wil. B. Jul 31, 2021     

Needed a way to check/confirm midi data being transmitted from my korg nano controller. This worked easily and immediately. Thanks to the developer(s).

Llo. K. Sep 27, 2020     

Captures (logs) midi events. Unable to save events as a midi file. Only saves the time stamped log format. Works well for what it does.

Lee. O. Nov 5, 2021     

It didn't work at all. No midi events were detected. (The same midi device worked with a different app.)

Tom. S. Apr 27, 2019     

Seems to be broken. My controller is working with another MIDI logger without any problems.

Car. C. Jul 17, 2021     

It works great!

Tho. G. Mar 20, 2014     

Starts when i connect novation launchpad s to galaxy s3. However then m_connectedmidi = null and currentmidi = null appear and no data is captured. On a midi keyboard captured only pitchwheel control messages, but no note messages or velocity. on akai lpd8 works flawlessly :D

Ph. M. Feb 2, 2015     

Oneplus one and korg nano. I wonder how to use my nano within a DJ app. Audio evolution doesn't recognize it though.

dav. c. May 31, 2015     

Not consistent - sort of working - sometimes!Roland UM1G Midi interface Sony Xperia Z.

Bas. D. Jan 10, 2015     

Helps to check the connection before switching to an app to use it. Nexus 7 generic midi to usb and otg cable

Kim. S. Dec 29, 2014     

Galaxy Tab 2, 7", older version and M-audio Oxygen 61 midi keyboard. Using a 30 pin to USB female dongle and USB A/B cables. I'm very happy to use it to test output as I learn Midi.

One. s. Apr 13, 2016     

Others apps works with the same midi device

Mat. B. Nov 18, 2015     

My Galaxy S5 doesn't seem to work well with the keystation.

Ian. M. Oct 9, 2015     

works as described now if only there was a midi over wifi option as well as the usb it would be perfect

Muh. R. P. Nov 14, 2014     

Thx dev :)

Geo. M. Jul 5, 2016     

This doesn't seem to capture / display SYSEX, and doesn't offer any ability to filter.

Ich. P. Jan 22, 2018     

Works very well with M-Audio keystation 49es

Jog. L. Feb 18, 2022     

Thank you!

ian. d. Aug 18, 2013     

Recognizes midi input when I plug in my keyboard, but then says no midi connected. Keyboard is a Yamaha CP33. Also, the lack of screen rotation is harsh if your cable connects on the bottom.

hg. n. Dec 21, 2013     

After connecting to my Korg Triton, it furiously displayed ton of MIDI messages even without any note or sequence playing on the Korg. It should filter out MIDI clock or provide this option. It displayed SysEx messages properly but not all played MIDI notes! It also has a small window displaying one different Google advertisement at each 5 seconds! It's worse than any Android app or Windows app, it's the worse AD-WARE!

JNO. E. S. Oct 16, 2013     

Thanks for your response. I changed my usb otg connector and it worked like a champ!

Ank. B. Nov 18, 2013     

Works for me. Nexus 7 plus Samson carbon 49. (Powered by the tab)

A. G. u. Sep 30, 2012     

Hi I installed this app and run with 3m USB midi cable which is works very well in my desk top However it doesn't recognized as an input in my gal tab2 Could u old check it?? ? Thanks

A. G. u. Jun 25, 2012     

I tested this on my Galaxy S 3 and a homebrew GM5x5 midi interface. Works great but the app will not exit, it just shows an ad and you cant do anything but go back to the program. Dont mind the ad but would like to have the app close..

A. G. u. May 17, 2012     

works great! more apps need midi input support like this one!!

Mih. V. Sep 7, 2015     

Works with my Yamaha P-105, but it will be more useful if it will allow us to save as mid file, not a useless log

Mat. A. Jul 22, 2016     

It worked. That's all.