Hi guys I was having trouble with noise/hiss while recording my MOXF via USB, so after a lot of help from this forum on why might this be happening and how resolve it nothing worked on getting rid of the noise/hiss problem http://www.motifator.com/index.php/forum/viewthread/479397/ so it was suggested to get someone with electrical experience to take a look which I did.
I asked a couple of professionals to come to my studio and check out my problem they spent around 5hrs tried everything they even replace MOXF with my FA6 and PA3X which worked great they produce no noise/hiss only MOXF had the problem, then in the end we found that the USB to host port that Yamaha have used is of poor quality and that’s why the noise/hiss coming there is no grounding issues what’s so ever! I’m really disappointed because after all I have paid so much and yet something like this to happen is not good

MXF - 08 December 2017 11:42 AM

Hi guys I was having trouble with noise/hiss while recording my MOXF via USB, so after a lot of help from this forum on why might this be happening and how resolve it nothing worked on getting rid of the noise/hiss problem http://www.motifator.com/index.php/forum/viewthread/479397/ so it was suggested to get someone with electrical experience to take a look which I did.
I asked a couple of professionals to come to my studio and check out my problem they spent around 5hrs tried everything they even replace MOXF with my FA6 and PA3X which worked great they produce no noise/hiss only MOXF had the problem, then in the end we found that the USB to host port that Yamaha have used is of poor quality and that’s why the noise/hiss coming there is no grounding issues what’s so ever! I’m really disappointed because after all I have paid so much and yet something like this to happen is not good

Take the unit back to the store, if it is under warranty they will help you or they can repair it. My MOXF is silent no hiss, and it doesn’t give me troubles with the USB to host port. In fact I love that I can bounce down audio tracks from midi tracks using Cubase without needing any extra cables. I don’t think it is a factory problem.

Good luck!

MXF - 08 December 2017 11:42 AM

Hi guys I was having trouble with noise/hiss while recording my MOXF via USB, so after a lot of help from this forum on why might this be happening and how resolve it nothing worked on getting rid of the noise/hiss problem http://www.motifator.com/index.php/forum/viewthread/479397/ so it was suggested to get someone with electrical experience to take a look which I did.
I asked a couple of professionals to come to my studio and check out my problem they spent around 5hrs tried everything

I didn’t suggest that you “get someone with electrical experience to take a look”, I suggested that you get such a person to help with modifying a USB cable. You said “nothing worked”. During those five hours, did the “professionals” do what I suggested in the thread you linked to above? Did they modify a USB cable or try a USB isolation device?

 

MXF -

they even replace MOXF with my FA6 and PA3X which worked great they produce no noise/hiss only MOXF had the problem, then in the end we found that the USB to host port that Yamaha have used is of poor quality and that’s why the noise/hiss coming there is no grounding issues what’s so ever!

Here’s a little test for you to try…
Leave the USB cable connected to the MOXF. Disconnect the audio cables from the MOXF. Plug headphones into the MOXF’s PHONES jack. Is the noise evident in the headphones?

 

MXF -

I’m really disappointed because after all I have paid so much and yet something like this to happen is not good

It’s not good, but the problem can be resolved.

[rant] I’ve been involved in audio-related electronics for a long time. People tended to believe what I said when they had to pay for the information. Apparently advice isn’t trusted by some when it’s free. I should probably just establish a website for advice similar to what I provide here, but charge a membership fee. [/rant]

USB noise and ground-loop issues are not limited to Yamaha products. The cause can sometimes be difficult to track down, especially when there are several interconnected pieces of gear. However, often the solution can be simple.

For those who aren’t close-minded, below are several items worth reading. I don’t agree with everything posted in them, but I think the general idea should become apparent…

http://www.motifator.com/index.php/forum/viewthread/473548/

https://www.yamahasynth.com/forum/usb-noise-issues-when-linked-in-the-studio

https://www.reddit.com/r/synthesizers/comments/55r649/usb_ground_loop_noise/

https://www.gearslutz.com/board/electronic-music-instruments-and-electronic-music-production/901312-synth-usb-audio-cable-ground-loop.html

http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=88794&sid=83b6df92d04f5b3c68deedd2a09ad075

http://keyboardwaves.com/remove-usb-noise-audio-output/

MXF, I know you’ll ignore this post because it isn’t beneficial to you, but you won’t find anyone like our very own 5pinDIN and if you did you’d be in for a lot of money and your problem would be fixed already. 

He’s one of a kind, he does it with love and evidently he now even rants in an informative manner!

So to sum up…

1 - Your MOXF couldn’t possibly have developed a fault?

2 - It isn’t anything to do with your environment?

3 - It’s Yamaha’s fault.

4 - It is categorically not your fault and user error is out of the question.

5 - 5pinDIN is chopped liver. (My favourite on this list and the kind of attitude that saw many world class people quit posting help on the internet on many audio related forums, Bob Katz as an example).

6 - When the outcome of the discussion doesn’t suit you, you start another thread.

OMG I never take 5pinDIN word lightly he has been very informative and I appreciate the all the trouble he has gone to in helping me solve my issue he is a very co-operative person who I respect sorry if my posts have been taken the wrong way I don’t mean to offend in any way!
I am again going through step by step all the points he has given to me and I am hopeful that this matter will be resolved this whole thing is very important to me again I apologies for disrespect or hurt feelings.
Hope you guys understand and there are no bad feelings!