Minitaur Noisy Audio Out?

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lfo2vco
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Joined: Sat Mar 09, 2013 6:40 am

Re: Minitaur Noisy Audio Out?

Post by lfo2vco » Sat Apr 06, 2013 1:09 pm

nectarios wrote:
bichuelo wrote:Does this fix work with the Phatty series too?
Yes, did it on my Slim Phatty and it worked.
Noise is completely gone, just like it did on my Minitaur.
Excellent, now that’s what I call a result. :D

barryfell
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Re: Minitaur Noisy Audio Out?

Post by barryfell » Fri May 10, 2013 2:18 pm

I fixed this problem by simply using a different USB lead. 8)

djmike
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Re: Minitaur Noisy Audio Out?

Post by djmike » Sat Aug 24, 2013 11:38 am

Had the same problem with the Little Phatty. I was getting pretty bad Audio Line-in ground loop noise whether the USB was plugged in or not. As soon as I played 1 key the noise would start cycling.

I had everything (iMac, Moog, Peripherals) plugged into a battery backup/surge protector.

What worked for me was plugging the Moog into the same wall outlet that the Battery Backup was plugged into. Hope that helps.

spin
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Re: Minitaur Noisy Audio Out?

Post by spin » Fri Sep 27, 2013 8:41 am

Hi guys!

Could someone explain me what i have to use to cover the 4 pin of the usb cable?

thanks in advance

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lfo2vco
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Re: Minitaur Noisy Audio Out?

Post by lfo2vco » Fri Sep 27, 2013 10:26 am

Hi Spin,

From my original post:
lfo2vco wrote:I was looking into using a USB Isolator for my MiniTaur too, however with a little Internet research I came up with a much cheaper option.

Using 19mm (3/4") wide Electricians Insulating tape, I cut a 2mm (3/32") wide strip and placed it in the B end of my USB cable. That is the end that goes into the MiniTaur. The insulating strip was placed over pin 4 completely covering it. The excess length stuck down over the outside edge of the plug, enabling easy removal if necessary. Hey presto the ground noise has gone, the MiniTaur still receives MIDI from my DAW and fully responds to the MiniTaur Editor software.

Here is the USB pin information:
Image
1 USB Vcc (Vbus)
2 USB Data
3 USB Data
4 GND

(Credit to Mosc on the electro-music forum for the pin info)

spin
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Re: Minitaur Noisy Audio Out?

Post by spin » Sun Sep 29, 2013 6:04 am

Thanks! It should work also with shielded usb cables?

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lfo2vco
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Re: Minitaur Noisy Audio Out?

Post by lfo2vco » Sun Sep 29, 2013 6:18 am

spin wrote:Thanks! It should work also with shielded usb cables?
Shouldn’t make any difference, you are isolating the MiniTaur from the Ground pin of the USB cable. So even if the cable is shielded the MiniTaur will still be isolated from it.

Hope this works for you :D

midilifestyle
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Re: Minitaur Noisy Audio Out?

Post by midilifestyle » Mon Jan 06, 2014 3:28 pm

This is a smart idea, and less permanent than my fix.

I have a ton of spare USB cables, and I have this problem with all my analog synths that use USB (DSI, phatties). So I made a couple hacked usb cables. I sliced horn the cables very carefully and snipped the black wire within the usb cables. Then I taped the cables up very carefully and neatly, and marked both ends of the cables as modified. This works really well, but is a bit sketchy, as you could ruin a cable if not careful, and obviously more permanent.

I notice that sometimes my DAW recognizes my synth immediately, sometimes I have to mess around for a few minutes, swapping out cables and tricking the daw into seeing the synth through the snipped cable. But I've never had the cable completely stop working, or stop working once the computer had recognized the synth.

bmelion
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Re: Minitaur Noisy Audio Out?

Post by bmelion » Wed Mar 05, 2014 6:07 pm

great post @lfo2vco

I've been struggling with this problem for a while and your solution worked perfectly :)

ludacrisca
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Re: Minitaur Noisy Audio Out?

Post by ludacrisca » Thu Apr 24, 2014 11:47 pm

i did cut the black cable and now it doesn't read it, ;/

midilifestyle
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Re: Minitaur Noisy Audio Out?

Post by midilifestyle » Tue Jul 08, 2014 10:41 am

ludacrisca wrote:i did cut the black cable and now it doesn't read it, ;/
Try plugging a regular USB cable in and playing the minitaur. Then with everything up and running, switch out the cables to the snipped cables. This works for me using a Mac Mini, Ableton, and analog synths

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Spazige
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Re: Minitaur Noisy Audio Out?

Post by Spazige » Tue Dec 16, 2014 6:36 am

lfo2vco wrote:I was looking into using a USB Isolator for my MiniTaur too, however with a little Internet research I came up with a much cheaper option.

Using 19mm (3/4") wide Electricians Insulating tape, I cut a 2mm (3/32") wide strip and placed it in the B end of my USB cable. That is the end that goes into the MiniTaur. The insulating strip was placed over pin 4 completely covering it. The excess length stuck down over the outside edge of the plug, enabling easy removal if necessary. Hey presto the ground noise has gone, the MiniTaur still receives MIDI from my DAW and fully responds to the MiniTaur Editor software.

Here is the USB pin information:
Image
1 USB Vcc (Vbus)
2 USB Data
3 USB Data
4 GND

(Credit to Mosc on the electro-music forum for the pin info)
+1

Many thanks for the advice on this thread! Lifesaver.
Grandmother, DFAM x 2, Mother 32 x 2, Sub 37, Minitaur, Theremini, MF-104M, MF-108M, MF-101, MF-102, MF-103, MF-105M, MF-107, CP-251 x 2.

moogfr
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Re: Minitaur Noisy Audio Out?

Post by moogfr » Sun Nov 13, 2016 12:18 pm

Also works terrific in SUB 37, thanks a LOT!!!

mc_deli
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Re: Minitaur Noisy Audio Out?

Post by mc_deli » Wed Jan 25, 2017 4:48 pm

lfo2vco wrote:I was looking into using a USB Isolator for my MiniTaur too, however with a little Internet research I came up with a much cheaper option.

Using 19mm (3/4") wide Electricians Insulating tape, I cut a 2mm (3/32") wide strip and placed it in the B end of my USB cable. That is the end that goes into the MiniTaur. The insulating strip was placed over pin 4 completely covering it. The excess length stuck down over the outside edge of the plug, enabling easy removal if necessary. Hey presto the ground noise has gone, the MiniTaur still receives MIDI from my DAW and fully responds to the MiniTaur Editor software.

Here is the USB pin information:
Image
1 USB Vcc (Vbus)
2 USB Data
3 USB Data
4 GND

(Credit to Mosc on the electro-music forum for the pin info)
WOW. Thanks so much for this. I tried lots of different USB cables, both my USB ports (rMBP), via a TB2 hub, via 2 different USB hubs... and always got whining Minitaur noise. But now with pin 4 taped, it's gone!

Thank you.

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