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MIDI Hardware
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Topic starter
Hi!
I try to use a second hand Yamaha P35 as MIDI keyboard, but have an issue with it. Three of the keys (C3, D3 & D#3) produce the sound and the action seems to work ok, but they produce incorrect MIDI signal.
I used MIDI Scope on my iPad to see what’s the problem.
C3
When I press that key I get E0 MIDI On event with some velocity and after release I get C3 MIDI On event with velocity 0
https://share.icloud.com/photos/0eboN8BvUTkQ4q8gEflQFw3Cg
D3
When I press that key I get F#0 MIDI On event with some velocity and after release I don’t get any MIDI On event
https://share.icloud.com/photos/0eyVhstD2qh4kU71muxqBu43Q
D#3
When I press that key I get G0 MIDI On event with some velocity and after release I don’t get any MIDI On event
https://share.icloud.com/photos/0cf6IDP-g3T9XexjBTuYHIE7Q
All the other keys seem to work fine. Is this a hardware issue? Is there a way to fix it? Would be very thankful for any suggestions
Posted : 01/01/2021 4:17 am
How do you connect the P35 to the iPad? The piano has only MIDI IN and OUT 5-pin DIN sockets, so I guess that you added some MIDI interface between the two devices. This piece of equipment would be my first suspect. Can you test your piano with a computer?
Posted : 01/01/2021 5:19 am
Topic starter
I use a no name MIDI to USB adapter paired with Apple USB to USB type c adapter. I’m pretty confident in Apple’s adapter as I used it to connect another piano to the same iPad, but I’m not sure that no name MIDI to USB is of good quality. Unfortunately, I don’t have other MIDI devices to test it right now, but will test it with a PC laptop later today or tomorrow and write a report about it. Thanks for your suggestion, Pedro
Posted : 01/01/2021 8:34 am
There is a plague of cheap chinese MIDI to USB interfaces. Maybe the following links can be helpful to diagnose yours:
https://www.reddit.com/r/Cakewalk/comments/equ3a8/midi_viewcon_cable/
https://karusisemus.wordpress.com/2017/01/02/cheap-usb-midi-cable-how-to-modify-it/
http://www.arvydas.co.uk/2013/07/cheap-usb-midi-cable-some-self-assembly-may-be-required/
Posted : 01/01/2021 8:50 am
Topic starter
I use the same adapter as you sent me in links 2 and 3. Although they seem not to work at all and mine was transferring wrong signal in some cases. I checked it also on a PC and the same C3 D3 and D#3 notes were mapped to some other notes (different for iOS and PC).
So, it seems like I need either fix the adapter or buy another one. Buying a new one might be a better option as I’m not sure that I could fix this one. Maybe you could suggest a good adapter? We don’t have a lot of options in my country, but I could order from abroad.
Posted : 02/01/2021 2:05 am
My recommendation is to buy one from any reputable manufacturer.
As an example, here are several products that you may like:
Posted : 02/01/2021 3:37 am
