Monitoring Midi messages from Yamaha PSR i425 on Midi Scope

[Sundar Rajan]

Hello all,

Has any one tried Midi Scope on older keyboards like the one above ?
I am observing that Midi Scope does not recognize Yamaha.

I have had no problems testing out Midi Scope using another phone running Midi Keyboard app.

I have also had no problems connecting the Yamaha to my PC (Win 7). I had to install its proprietary USB driver, anyway.

So, I presumed that Yamaha's midi is not class compliant and therefore there is hope of connecting it to Android.
 

But then, I discovered that an android app called ORG 2020 does recognize my Yamaha.

My hopes have now glimmered.

I should add that even the most popular "Perfect Piano" app does not recognize Yamaha.

Is there any solution to this problem ?

Regards,

Sundar Rajan

[Phil Burk]

Hello Sundar,

>  I had to install its proprietary USB driver, anyway.

That is a bad sign. Requiring a custom driver suggests that the device is not class compliant.

Android will only work with class compliant drivers. Luckily all recent devices are class compliant.

> Is there any solution to this problem ?

I don't know of any. Communicating with non-compliant devices generally requires writing a custom driver.

I suspect the "ORG 2020" folks did that.

Phil Burk

--
You received this message because you are subscribed to the Google Groups "android-midi" group.
To unsubscribe from this group and stop receiving emails from it, send an email to android-midi...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/android-midi/6d4c4338-ba13-46a5-9dbb-696c146a2a7b%40googlegroups.com.

[Sundar Rajan]

Thank you Phil,

Basically, my goal is to intercept the midi keypress messages, tranlate them into a different set of keys and send it back.

I am doing it on the PC.without any problem.

I wanted to do the same thing from a android phone.

Until I saw your MidiScope, I was planning to use an arduino to do the job of trapping, translating and returning the messages.

The phone would communicate with the Arduino to configure the translation table.

After I came across your Multiscope, I thought why not do everything from the phone.

Now it appears it is possible only for the newer Keyboards and I have to use the hardware route for the older keyboards.

If you get a brainwave, please do let me know.

Regards,

Sundar Rajan

[Sundar Rajan]

I forgot to mention the background of this whole affair.

.

To develop the android app, I wanted to take the help of a friend of mine.

He does not have a keyboard.

So, I was wondering how he can do the testing without a keyboard.

Then I thought of a virtual keyboard, looked around and found your Midi Keyboard.

I tested my PC software using your Keyboard app in place of Yamaha. Success!

Thank you for providing such a wonderful piece of software.

Regards,

Sundar Rajan

.

On Thursday, May 14, 2020 at 11:54:01 PM UTC+5:30, Sundar Rajan wrote:

[Sundar Rajan]

Sorry to bother you Phil,

I found something here.

https://github.com/kshoji/USB-MIDI-Driver

Is it possible to incorporate this in your MidiScope?

Regards,

Sundar Rajan

On Thursday, May 14, 2020 at 11:54:01 PM UTC+5:30, Sundar Rajan wrote:

[borow...@gmail.com]

Today, I've done a test, with Yamaha E423 and Yamaha digital piano p125 both with MidiScope on Huawei MediaPadT5.

Conclusion:

On the same tablet:

There are a MIDI LOG EVENTS with Yamaha digital piano p125

There are NOT a MIDI LOG EVENTS with Yamaha E423 (need to use USB MIDI DRIVER to see it)

BR,

pb