MacBook Pro :: MIDI Controller Is Working In The Right USB Port But It Doesn't In Left
Aug 26, 2014
yesterday i bought MIDI keyboards it's M-AUDIO Keystation Mini 32
The problem is that when i connect it to right USB port it works flawlessly, but when i connect it to my left USB port - my macbook pro recognizes the device but it doesn't send any midi data - to put it in other way: it is not working.
I have checked, everything is working fine In the LEFT usb port( wireless mouse, external HDD, Flash drives, Iphone) except my MIDI Keyboard.
Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.4)
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May 17, 2010
I have a usb midi controller (vestax spin to be exact) and my mbp doesn't seem to recognize it but I know it's on because of the power light, what can I do? Also sometimes I get a message to power down my computer or restart.
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Mar 15, 2009
I have only just got a MIDI keyboard conencted via USB to control the software instruments on Garageband. The only problem I am finding is if I say, sample some drums, I can only play them back by manually placing them in the chord orchestrator.
What I basically need/want is to control the track (the part on the left) by a single press on the keyboard; so if I wanted 2 kicks to sound, I'd press the key twice. But at the moment it's just not registering at all, and only allows me to play the stock software instruments with the keyboard
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Mar 13, 2010
I just recently purchased Logic Express 9. I am having difficulty getting the application to play my external MIDI gear.
I selected the appropriate track type (external MIDI), then selected from the library a MIDI device and channel. Logic sees the MIDI devices that I configured through Apple's "�Audio/MIDI interface� app".
This is my setup�
Logic Express is installed on an iMac with 4GB Memory running the latest version of MAC OS 10.x Snow Leopard.
I�m using a Motu Fastlane 2x2 MIDI Interface with Motu�s latest driver installed.
Connected to the Port A input of the Fastlane is a Yamaha P-80 that I am using as a MIDI controller and whose sounds I also want to use. Connected to the two output MIDI ports of the Fastlane are the Yamaha P-80 and a Roland JD990 MIDI synth module. In are correctly routed to outs and vice versa.
The Fastlane is recognized by the MAC computer. Also Logic Express sees the instruments I configured within the Apple�s �Audio/MIDI interface� app.
I am able to use the P-80 keyboard to record MIDI data to Logic Express for either an internal instrument track or an external MIDI track. The soft synths in the internal tracks play with no problem. For an External MIDI track, I see the data in the Piano roll view. When I play the track, no sound comes out but I see the output MIDI data indicated at the bottom of the arrangement window. Also my external MIDI gear�s audio outs are patched into an audio mixer connected to powered monitor speakers. So I would definitely hear the devices if they were receiving MIDI information. The MIDI indicator lights on the external devices are not flashing when Logic is playing back the data.
So obviously I have an output communication issue. Either something is not set properly within the Logic software or the �Audio/MIDI interface� app.
When I open up the �Audio/MIDI interface� app and click on test. I am able to here the tone when I press the keyboard which indicates the Motu Interface is receiving data from the keyboard. However, when I click on the port�s output arrow that is supposed to send a tone to the MIDI instruments, I hear nothing which is consistent with what is happening within Logic.
I know the Motu Fastlane works because I used it for a long time in a Windows based system. I have checked each wire and they check out as well. I have checked and double checked each connection and they are set properly. At this point, I am not sure what to do to correct this problem.
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iMac, OS X Mavericks (10.9.2), 2.7 GHz Intel Core i5
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From a software point of view: I haven't installed anything new lately and I've closed down all the applications running on osx with no luck. Is there some way I can diagnose whether this is hardware or software? Can I boot to a command prompt and test it there? does osx lion include an on-screen keyboard that shows each key being hit? I suppose I could install a keylogger but that might not be conclusive.
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