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MMD > Archives > May 2007 > 2007.05.03 > 05Prev  Next

Wireless MIDI Connection Tested
By Alan Turner

For those who use e-valve equipped instruments, this week I purchased
and installed a wireless MIDI connection from my computer to my e-valve
equipped Duo-Art Piano.  I think it will be of interest to others in
the group.

I purchased an off-the-shelf wireless MIDI transmitter and receiver
from M-Audio (  The model I purchased is called
"MidAir".  This product is primarily designed to transmit MIDI signals
from a keyboard or other device on stage to a mixer or computer.  As
such it was not quite plug-and-play for application to send MIDI signals
from the computer to the e-valve system.  I basically had to configure
the setup reverse to the design configuration.

Here are the additional items I needed for the installation (with costs
in Canadian dollars):

  MidAir transmitter and receiver system  $120.00
  MIDI Coupler (female/female)   $5.00
  MIDI Cable (3 foot single lead male/male)   $7.50
  9 volt 500 mA power supply   $17.50  (only one was supplied with the
    kit and two are required for our types of setup)

Total cost: $150.00 CDN ($130 USD +/-)

The configuration is as follows:

computer end:
1.  Computer with MIDI files
2.  USB to MIDI male 5 pin connector (part of the original wired
      MIDI interface with the e-valve system)
3.  MIDI Coupler (female/female)
4.  MidAir transmitter (powered by 9 volt 500 mA transformer,
      normally battery powered but I opted to use a power supply)

e-valve end:
1.  MidAir receiver (powered by 9 volt 500 mA transformer)
2.  MIDI Cable (3 foot single lead male/male)
3.  E-Valve System input

I have tested this out on my system and so far have not run into
any issues; I installed it and everything worked flawlessly.  The
transmission range for this system is about 30 feet, I have tested it
to about 25 feet and it seems to work well.   The distance of 25 feet
works well for me allowing me to move the computer out of sight of the
piano.  I am very pleased.

If anyone has questions I'd be happy to answer them (if I can).

Alan Turner

(Message sent Thu 3 May 2007, 17:51:14 GMT, from time zone GMT-0500.)

Key Words in Subject:  Connection, MIDI, Tested, Wireless

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