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Marbury
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Joined: 28/08/03
Posts: 1736
Loc: Cheshire, UK
Komplete 6 midi flashing permanently.
      #1072416 - 30/10/13 09:23 AM
I am not too sure what settings to have in Reaper for processing audio with a Komplete 6 interface but when I play my Yamaha Motif 6 audio through the interface and in Reaper I get a slight grainy, zipping sound as if clipping. The levels are right under the threshold so it's not a level issue. The midi in is permanently flashing on the K6 interface even when I am not playing any keys. Something isn't right but I have no idea what settings I should have for the K6 in the ASIO settings. At the moment it is set for 44100 khz at 256 samples at 4 ms. The PC is big enough to handle anything as it has 8gb ram and an i5 processor.

Any optimum settings anyone could give for performance and audio quality would be helpful. And any midi settings in the Motif if anyone has one to stop the midi flashing.

Thanks.

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damoore



Joined: 05/07/09
Posts: 587
Loc: New Hampshire
Re: Komplete 6 midi flashing permanently. new [Re: Marbury]
      #1072443 - 30/10/13 01:41 PM
What do you see with MIDI OX or equivalent?

Two common causes are: the synth sending MIDI clock messages. I don't know that the Motif has any concept of tempo. If it does not then its not this.

Secondly, noise from a pitch, modulation wheel of expression pedal producing control change messages.

Now, the "zipper" sounds. MIDI, being unbalanced, can bounce the grounds around enough to cause noise in the audio path when you have unbalanced ins. Putting a DI (or isolation transformer, which is almost the same thing) between the synth outs and the interface will usually fix this. This effect is usually fairly soft; I am not sure from reading your post whether that is the case here.

Edited by damoore (30/10/13 01:43 PM)


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James PerrettModerator



Joined: 10/09/01
Posts: 10719
Loc: The wilds of Hampshire
Re: Komplete 6 midi flashing permanently. new [Re: damoore]
      #1072457 - 30/10/13 03:32 PM
Quote damoore:

W

Now, the "zipper" sounds. MIDI, being unbalanced, can bounce the grounds around enough to cause noise in the audio path when you have unbalanced ins.




The MIDI side of your audio interface should be electrically isolated from the audio ground as all MIDI inputs should be optically isolated if they conform to the MIDI spec.

I would guess that we've got some kind of MIDI loop happening here - check your local on/off setting.

--------------------
JRP Music - Audio Mastering and Restoration.
http://www.jrpmusic.net


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Marbury
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Joined: 28/08/03
Posts: 1736
Loc: Cheshire, UK
Re: Komplete 6 midi flashing permanently. new [Re: Marbury]
      #1072505 - 30/10/13 08:23 PM
Yes the local is always off but this time it wasn't I have managed to stop them flashing now by setting the Motif MIDI sync to Internal and not MIDI or MTC (not a clue what the difference is) The lights just stay on permanently which is less annoying than the flashing.

Edited by Marbury (30/10/13 08:34 PM)


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