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Midi notes hanging with Logic X

Hi all. I am new to this, so please be gentle :-)


I have an AMT8 Midi interface (from Emagic). I have a keyboard that is connected to the interface, and subsequently into my iMac.

Since installing the new Logic X, the midi notes are getting stuck (hanging). This is when I am using a software instrument within Logic.

I find that I have to turn off the midi interface (or hit the panic button) to stop the hanging notes. Sometimes there is no sound until I again restart the interface.


I also have Logic 9, and I have never had this problem, all works fine.


Does anybody have any experience of this, or any advice?


Cheers,


3Vedi.

Logic Pro X, OS X Mountain Lion (10.8.4), iMac, AMT midi interface, Motu 828

Posted on Aug 2, 2013 1:40 AM

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Posted on Aug 2, 2013 6:14 AM

CCan you make sure you have the latest version of the AMT8 driver installed? you might want to use an App named MiIDI Monitor to check where the hanging notes come from.

94 replies

Sep 2, 2014 2:00 PM in response to ManicBoy248

I just checked with a client of mine who has a 2013 iMac and 128 Express and his advice is...


Contact Motu Support as I think they are now privately or semi publicly testing some new Beta drivers that resolve this issue with the 128 and the latest Mac hardware / 10.9.4 or later...


Apparently this issue is caused by changes made by Apple to the USB routines in 10.9.3/4

Sep 4, 2014 6:18 AM in response to 3Vedi

I did find a temporary work around though.


I use all my usb devices that have MIDI ports as well (i.e. Focusrite 18/8i, Akai MPK25, Arturia Mini Brute), as an interfaces for all my "retro-like" MIDI gear. I then saved a template file in logic, once I had everything setup (physically and virtually) in my studio. I actually don't get any hanging midi notes with this frankenstien's monster of a configuration. Here's how I have everything plugged in physically... if it helps?


Nord Lead –– (MIDI) –– Focusrite 18|8i –– (USB) –– iMac


Spectrum Synth –– (MIDI) –– Mini brute –– (USB) –– USB 2.0 hub –– iMac


Monotribe –– (Sync) –– Volca Bass –– (MIDI) –– Akai MPK25 –– (USB) –– iMac


MIDI Device –– MIDI –– Bass Station II –– (USB) –– USB 2.0 hub –– iMac


MIDI Device –– MIDI –– Sub Fatty –– (USB) –– USB 2.0 hub –– iMac


Arturia SparkLE –– (USB) –– iMac


Software Dongle –– (USB) –– USB 2.0 hub –– iMac


Coffee –– Jesse –– iMac

Sep 9, 2014 5:55 AM in response to The Art Of Sound

Hello Art Of Noise,

you seem like a clued upfellow. I'm having all sorts of sync problems fro m pro x to my roland drum machines (TR707 & R8) they dont stop start correctly or run in sync. But the strange thing is , I have a MFB 522 drum computer running on the same daisy chain and its running in sync just fine?

VEry strange. I have got a cheapo USB to midi lead tho. Also if I try to send a midi patern out to my MFB it has no polyphony. Only one instument sounds at a time.

my heads gonna explode I think lol

aly feedback would be greatly appreciated

Sep 9, 2014 6:47 AM in response to Jamieally

Hi Jamie,


I probably not the person to try and answer your question as I tend not to use Hardware with Logic Pro X.... (I'm more an old school Hardware Sequencer person when it comes to external synths) but I can say I know of several people who use the 707 with Logic without issue.... .....so I'm guessing your issue lies with your choice of one of those really cheap usb to midi cables which are known to cause all kinds of weird issues... from hanging notes to sync problems.. and maybe a touch of User error?


So.....


Note: Make sure on the 707, you are pushing SHIFT -> SYNC MODE three times or until you get a message in the LCD that says "5-n", which means the 707 is now following MIDI clock. (I don't know much about the R8 so someone else will have to step in and advise if there are any special setups needed for that)


More detail


1) Enter Track Play mode.
2) Press the STOP button to stop the rhythm if it is running.
3) While holding SHIFT, press SYNC MODE repeatedly to change between the
different sync modes.

Display will show:

5-d = DIN Sync
5-t = Tape Sync
5-n = MIDI Sync
Number (Tempo Value) = Internal Sync


Also read up on the Sync stuff in Logic Pro


http://documentation.apple.com/en/logicpro/usermanual/#chapter=40%26section=0


This is for LP9 but it works much the same way in LPX (making sure you have turned on all the advanced features of LPX in LPX's Preferences/Advanced tab)

Midi notes hanging with Logic X

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