No, but now all the sounds coming out of the PC are distorted to hell. WTF

So likely not the MxB then. I agree with others that its sounds like something with your computer/interface.

That's the the Insert jack on the back of the MxB, where you can tap the audio and send it back. Normally used for e.g. inserting an FX pedal in the audio path of the synth.

You probably need another thread.

Yea it’s not the matrixbrute, this type of interference is common with some pcs. I have 2 pcs and get exactly this from one of them with a zoom f4 connected by usb. Doesn’t bother me it’s not my main machine. The other pc doesn’t do it even with the same setup. Sucks that some pcs are out together more cheaply, I don’t know exactly what it is to be honest.

This sucks. Thanks for the help everyone.

What kind of USB isolator do you have? Can you put a link in here to it.

It's ADUM3160. https://www.analog.com/media/en/tech...s/ADuM3160.pdf

Bought it a while ago to get rid of noise produced by connecting OB6 to the computer. It did the job.

So that isolator is low/full speed (12 mbps max), I'm guessing the m-track is high speed (480 mbps), it is hard to find out as there is little info on it, the others in the range are 480 though.

This is probably why the sound goes wonky when you use it between the computer and the interface.

The other things on the internet about that 1K noise seem to say it is always there, if you totally disconnect the MB from it can you still hear it?

No, it's not there if MB is disconnected, but it's there when the synth is connected and turned off. When I disconnect the cable from MB (but it's still connected to the interface's input) the noise is also gone.

Aha, if you leave the cables connected and remove the power lead from the MB does it go?

Yes.

So I guess we have some grounding issue going on here, the 1K whine (and repeats) are most likely caused by the USB as it runs at this frequency.

Maybe try a different power strip, or power lead to the MB.

Maybe also put the audio interface into a powered hub to make sure it isn't something to do with it being underpowered from the PC.

Alright thank you very much.

edit
None of the sockets in my room solved the problem, but connecting MB to the socket in the opposite room did it. Now I have a cable running through the corridor and half of the room. One night I'll probably trip over it and kill myself, but if that's the price for using this synth, I'll gladly pay it.

Thanks again.

Ok, one thing you are meant to do is power everything from one main socket.

So for instance here I have a UPS plugged into the wall. that feeds a Furman power conditioner/sequencer which then feeds three power strips, everything is then plugged into these power strips or power strips connected to these power strips.

So every bit of equipment is sharing the same ground from the same socket.

Normally is all your gear connected to the same socket in the wall like this?

It's not because when I had everything plugged to the same socket, monitors were producing a similar, annoying whine.

Adding myself to this thread as I am now a proud owner of this
Massive beast of a synth, been eyeing one of these since they came out.
Looks like a good time to get one as the 2.0 firmware ironed out
A lot of the bugs.

Congrats!!

Would be interesting to hear what your views are of the synth once you’ve used it for a while since I’m a fan of your music.

Well so far I can say it’s pretty easy to get around
I used to have the mini brute when it first came out and
Did dig the sound.

To my ears it’s somewhere between an SE1x , Voyager and
In some respect like the A6 soundwise.
Not so close to a mini Moog sound As some have asked
In the forums

Sounded pretty vanilla at first until I started digging into it.

Still have to figure a few things out, like sequencer mod
Can’t seem to hear any results and still need to figure out
How to assign the 16 free modulation slots that came with the 2.0
Firmware, other than that I,ve pretty much Sussed it.

As far as I can tell there is no way to sequence p-lock style
That is to be able to alter multiple parameters per sequence note
Kind of missing a trick there.

Will play around a bit more and let ya know.
So far I’m digging it.

It looks cool

LK

Sequencer mod is a multiple step process. First, you have to assign parameters to the sequencer in the matrix. Then you go into the sequencer and turn on the mod per step. IIRC, you can hold down a sequencer mod step button and tweak the amount knob to do p-lock-y things.

Getting to the freely-assignable mod slots is pretty easy. The four white buttons under the e-ink screen are tapped to select pages, and held down (plus a wiggle of the knob or slider you want to mod) to assign the column on that page.

Cheers for that mate, got the 16 slots figured out.
Have not had a chance to mess with SeqMod yet.
There is so much under the hood to play with it’s unreal.
I have been totally immersed in patch creation for the past
3 hours none stop.

Initial thoughts I am super impressed, the ladder filter while
Cool does not compare to my mini Moog but is definitely
Usable, and I remember what I liked about the Steiner filters
Can get super crisp brilliance on high arp sounds

Lovely synth

And the custom LFO can work as a step sequencer—so p-lock-y albeit with a different workflow.

So I do have one question
Is it possible in the matrix to use noise as a modulation source?
I know about the noise to VCO 1 / VCF knob in the modulation section
But what if I wanted to use noise to effect pitch of say VCO 2 or 3?
I’m gathering this is not doable?

Nope. If you have an external noise source you could feed in into the patch bay.

Much appreciated

Just refreshing, and putting a spotlight on beloved Matrixbrute -

Producer and composer Gary Marlowe on the use of Arturia MatrixBrute.

Hi everyone,

this may be a very specific issue, but maybe someone of you guys have experienced it too?

I'm on a hackintosh build, and use Maschine & Logic.
But when I'm on Maschine I noticed my hackintosh crashed when using my MxB connected through USB.

As I finally found the issue! (I was kind of melting every time I encountered it.)
I found out it doesn't happen when connecting it with MIDI.

Not sure if someone of you guys have encountered this.

I think it had something to do with the USB clock info or something that made my hackintosh go 404.

Only using USB for changes in presets now.

Try to remap USB ports, or change how USB is injected.
This is the most common problem with USB on Hackintoshes.

https://github.com/corpnewt/USBMap

I don't have Hachintosh (I have MacPro), so please don't ask me for details.
Google hackintosh community instead.

Thank you, I'll check it out.
Strange it only happens with the MxB and not with my other 2 synthesizers. Also only with Maschine

It must be remap/injecting USB issue. ( If I am wrong, forgive me)
From my own experience MatrixBrute and Genuine Macs coexist just fine.
I am on Mojave OS (MacPro 5,1), and once my MatrixBrute was connected to my friend's MacBook Pro running Catalina OS, no problems.
Good luck with troubleshooting, I guess you will need it, as it can be painful.

Looking to buy a used matrixbrute, I've heard there was a new paint scheme difference since the unit initially shipped? Is this true? Also any hardware issues I should be aware of when buying used?

Cheers