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What kind of usb wire? #2844728 05/03/19 08:11 AM
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Snail Offline OP
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My question is about using a DP to play another one. Both have usb connection. I have a wire that i use to plug the piano into the PC. But it obviously has different connectors on each side. The one on the piano is more square form. And the one that goes into the PC is more flat. But if i want to plug one piano into another piano i need a wire that is square form on both sides. Does it exist? Or do i need some kind of adapter? The pianos are a Casio and a Yamaha if that has any relevance.

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Re: What kind of usb wire? [Re: Snail] #2844730 05/03/19 08:21 AM
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Tyrone Slothrop Offline
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Originally Posted by Snail
i need a wire

Not a big deal, but as just an FYI, you are describing a "cable" which is different than a "wire".

Originally Posted by Snail
The one on the piano is more square form.

USB Type B connector:
[Linked Image]

Originally Posted by Snail
And the one that goes into the PC is more flat.

USB Type A connector:
[Linked Image]

Originally Posted by Snail
Does it exist?

[Linked Image]


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Re: What kind of usb wire? [Re: Snail] #2844755 05/03/19 09:43 AM
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Thankyou very helpful

Re: What kind of usb wire? [Re: Snail] #2844763 05/03/19 10:14 AM
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Most helpful member on the board! Mac now runs in second. Superseded by an upstart! blush

EDIT--I mean in the DP forum, of course. No idea what goes on elsewhere.

Last edited by thickfingers; 05/03/19 10:17 AM.
Re: What kind of usb wire? [Re: Snail] #2844774 05/03/19 10:27 AM
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No, it most probably won't work with just a cable. MIDI over USB isn't as simple as the old DIN MIDI interface. In the USB world there are "hosts" and "devices". Almost all of the digital pianos are USB devices and need to be connected to a USB host, i.e. a computer. In some rare cases digital pianos can act as USB hosts instead (for instance Dexibell introduced it in some of their latest firmwares). However in most cases a direct USB to USB connection between pianos won't work. You will need an intermediate USB MIDI host to which the two digital piano USB devices will connect. There are dedicated MIDI hosts that are sold, they are externally powered and have multiple USB ports to connect the digital pianos and would route the MIDI signals between the connected devices, e.g. the pianos. It's also possible to use an iPhone (and probably an Android?) with a particular application that would act as an intermediate USB MIDI host.

Last edited by CyberGene; 05/03/19 10:35 AM.

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Re: What kind of usb wire? [Re: Snail] #2844792 05/03/19 11:09 AM
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Re: What kind of usb wire? [Re: Snail] #2844814 05/03/19 12:30 PM
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If one of the pianos has a standard MIDI connection instead of USB I'd get a USB to midi adapter cable instead of complicating things. If you'd mention what models you have that might help find a solution more sure to work.


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Re: What kind of usb wire? [Re: puremusic] #2844823 05/03/19 01:01 PM
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Originally Posted by puremusic
If one of the pianos has a standard MIDI connection instead of USB I'd get a USB to midi adapter cable instead of complicating things. If you'd mention what models you have that might help find a solution more sure to work.

I’m not sure this will work either. USB to MIDI cables are designed to be plugged into a computer which is why they use a USB A plug.


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Re: What kind of usb wire? [Re: Snail] #2844825 05/03/19 01:05 PM
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Neither piano has midi. Just usb. They are a Casio cdp130 and a yamaha np12

Re: What kind of usb wire? [Re: Snail] #2844831 05/03/19 01:56 PM
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I suspect you'll need a crossover cable, not just a standard usb cable. (The cable and the connectors are the same but the connectors on the ends are wired in a different order.)


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Re: What kind of usb wire? [Re: Snail] #2844842 05/03/19 02:23 PM
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Snail - USB midi is not flexible like that. It might be easier to just get keyboards with traditional 5-pin DIN midi support.

One option that MIGHT work:

Retrokits RK-005 -- €146.00

https://www.retrokits.com/shop/rk005/
https://www.youtube.com/watch?v=fr1tmzpKAuY

A Casio employee recently provided some thoughts so that is the place to start:

https://www.casiomusicforums.com/in...idi-solutions-for-the-modern-casio-user/

Re: What kind of usb wire? [Re: Snail] #2844843 05/03/19 02:25 PM
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Newer_player you’ve been changing locations. Are you really in Bulgaria now? smile


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Re: What kind of usb wire? [Re: Snail] #2844845 05/03/19 02:28 PM
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No passive cable will work. Crossover or not.

Like said, there needs to be some sort of a "magic box" or the MIDI needs to be routed via a computer or possibly via a mobile device(?) as suggested.

Most of the "magic boxes" probably have 1 USB input and 1 set (a pair) of those 5 pin DIN legacy MIDI sockets.

But is there any that can connect two USB-only devices?

The Kenton MIDI USB host won't work:
https://www.thomann.de/fi/kenton_midi_usb_host.htm

Seems to be the same no-go with the already mentioned Mode Machines Cerebel USB V2:
https://m.thomann.de/gb/mode_machines_cerebel_usb.htm

Re: What kind of usb wire? [Re: CyberGene] #2844846 05/03/19 02:30 PM
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Originally Posted by CyberGene
Newer_player you’ve been changing locations. Are you really in Bulgaria now? smile

At the yogurt farm doing some QC!

Re: What kind of usb wire? [Re: newer player] #2844849 05/03/19 02:34 PM
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Originally Posted by newer player
Originally Posted by CyberGene
Newer_player you’ve been changing locations. Are you really in Bulgaria now? smile

At the yogurt farm doing some QC!

I’m sure you know yoghurt is our pride and the bacteria that produces it is called Lactobacillus bulgaricus smile

Sorry for the off topic. Again frown


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Re: What kind of usb wire? [Re: clothearednincompo] #2844978 05/04/19 01:48 AM
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Originally Posted by clothearednincompo
No passive cable will work. Crossover or not.
. . .


+1, from what I understand about USB protocols.

The "old fashioned" 5-pin MIDI serial ports -- MIDI Out, MIDI In, MIDI Thru -- have a lot to recommend them. Those _would_ interconnect with passive (just wire, no electronics) cables.




Last edited by Charles Cohen; 05/04/19 01:51 AM.

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Re: What kind of usb wire? [Re: Snail] #2844980 05/04/19 02:00 AM
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From newer_player’s link it seems the only current solution would be to use a Retrokits RK-005 USB MIDI Hub to which you should however connect a powered USB hub and then connect the two pianos to the latter. Seems like too much of a hassle. A DIY solution with a Raspberry would be better. Or using an iPhone.

Last edited by CyberGene; 05/04/19 02:04 AM.

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Re: What kind of usb wire? [Re: clothearednincompo] #2844981 05/04/19 02:24 AM
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Cloth-meister is right. A cable won't work, regardless of type.
Originally Posted by clothearednincompo
No passive cable will work. Crossover or not.
Like said, there needs to be some sort of a "magic box" or the MIDI needs to be routed via a computer or possibly via a mobile device(?) as suggested.
USB requires a "controller" on one end, typically a PC. A piano (or printer or keyboard or mouse) is not a controller. It's a device.

You cannot connect two devices together.
A device must be tied to a controller. That's the only way.

Re: What kind of usb wire? [Re: Snail] #2844991 05/04/19 04:34 AM
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Another possible solution would be to buy a new Dexibell piano! ahahaha!!

Re: What kind of usb wire? [Re: Snail] #2844993 05/04/19 04:43 AM
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Welll I'm deeply grateful to all of you who tried to help me with this little issue but i definitely surrender myself. It seems way to tricky. At least I've learned that the next device I'll buy better have midi.

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