2017-08-10 by George F. Litterst
Good morning, everyone.
Geoff, I apologize for leading you astray on this possible solution. However, I have something additional to propose. First, some background:
I don’t have the Mio4, and it did not occur to me to question whether it produces power on the MIDI ports. After all, the interface, itself, has connectors for USB-supplied power as well as an external power supply. I presume that you have tried supplying power with both.
I have the very first interface from iConnectivity, and it has similar functionality. In my case, I have MIDI cables that run from the computer in my studio behind baseboards to my piano which is 30 feet away. Those cables connect to one pair of MIDI ports on my iConnectivity interface.
I also have a USB cable with an iOS USB adapter connected to the interface. This enables me to plug directly into an iPad at the piano when I want to work with MIDI software, such as SuperScore or Home Concert Xtreme. If I wish to use the Disklavier with my Mac laptop instead (running either HCX or Internet MIDI), I use the other USB output on the iConnectivity to connect to my Mac.
The interface itself connects to the piano via USB, and thus I can avoid the switching the Disklavier’s MIDI settings between USB and MIDI—and I get to enjoy connectivity to my iMac 30 feet away, my iPad at the piano, and my laptop at the piano.
As you can see, in my setup, I did not need BT MIDI. BT MIDI requires you to re-establish the connection each time you power up. In my situation, I avoid that issue as well.
Based on your report, I did go ahead and connect the MD-BT01 to my iConnectivity interface and discovered that mine, too, does not provide power.
Then, I dug out an old device from my MIDI closet called the Anatek Power Pack. It’s a nifty little box about the size of a pack of cigarettes that adds power to the MIDI chain. I was able to connect MIDI out from the DKC-850 to the Power Pack and then the Power Pack MIDI out to the MD-BT01. That was sufficient to power the MD-BT01 in both directions and everything works great.
Anatek is no longer in business, but you can get a similar product from MIDI Solutions:
http://www.midisolutions.com/prodpwr.htm
The size and specs on the MIDI Solutions Power Adapter look identical. Apparently it comes both with and without a wall adapter.
I hate to send you down another rabbit hole, but you might find that this nifty box completes your solution.
In my own situation, I cannot avoid trips to the MIDI Settings area of the DKC-850. The reason is that I need to alternate between turning off and on the MIDI In Delay.
When I am playing MIDI recordings, I typically want the delay turned on. When I am playing the piano myself with accompaniments that follow me or when using Internet MIDI, I need the delay to be turned off. Of course it is a nuisance to have to switch between those settings. I generally leave that settings screen active so that I can go back and forth without pressing extra buttons.
Regards,
PianoBench
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> On Aug 10, 2017, at 3:01 AM, gward1211@... [disklavier] <disklavier@yahoogroups.com> wrote:
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> Hello George
> Just to follow up from the last paragraph of my previous posting, I am unable to use the Mio4 to avoid the MIDI settings "dance" on the DKV because the Mio4 does not provide power at the MIDI out connector. The Yamaha bluetooth MIDI device requires power from the MIDI out socket and there is no other way to power it.
> Kind regards
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> Geoff Ward
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