General Discussion of the Nord Stage (EX), Nord Stage 2 (EX), Nord Stage 3, and Nord Stage 4 Synths, FAQ, Troubleshooting etc.

Stage 3 LED display buzzing?

Postby NordNerd431 » 15 Apr 2018, 03:51

Anybody notice a buzzing noise, seemingly coming from the LED displays of the Stage 3? I just got my Stage 3 88 today, and noticed it as soon as I took off my headphones after playing it for about 30 minutes. If normal, I could certainly get used to it, but not sure if it is a sign that something is not right. Thanks in advance for your input.
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Stage 3 LED display buzzing?


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Re: Stage 3 LED display buzzing?

Postby usrockband » 15 Apr 2018, 06:14

Are you sure it isn't just the power supply? How loud is it?

It probably isn't anything to worry about. My NS3C has a very mild buzz as well, but I believe it's just the power supply (capacitor buzz). I think it adds character! ;)
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Re: Stage 3 LED display buzzing?

Postby MartinJ2EX » 15 Apr 2018, 08:51

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Re: Stage 3 LED display buzzing?

Postby NordNerd431 » 15 Apr 2018, 14:21

MartinJ2EX wrote:http://www.norduserforum.com/nord-stage-forum-f3/oled-displays-nord-stage-3-t14909.html

Sounds similar to this thread :oops:


I’ve read that post. That other post seem similar, but there were no solutions or explanations given. It definitely seems to be coming directly from the led displays. I contacted Clavia to see if it is something normal, or a bigger issue.

Update: Pablo recently told me that it's likely the transformer from the internal power supply.
Last edited by NordNerd431 on 18 Apr 2018, 04:54, edited 1 time in total.
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Re: Stage 3 LED display buzzing?

Postby Romanwave » 02 Dec 2019, 11:51

Same issue! Both display make noise... is it ok?
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Re: Stage 3 LED display buzzing?

Postby Romanwave » 02 Dec 2019, 12:24

Watch on youtube.com

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Re: Stage 3 LED display buzzing?

Postby pterm » 02 Dec 2019, 20:57

Hi Romanwave,
Thanks for uploading this video and welcome to the forum.
I expected (from datasheets) that these OLED produced kHz frequency buzzing.
I recorded the audio from your upload to Audacity and ran the spectrum and spectrogram. These show peaks at 3.7kHz, 6.9kHz and 13.7kHz.
Your video allowed me to confirm how this buzzing differs from the power supply hum.
-pterm
Attachments
BuzzSpectrum.jpg
Spectrum Buzzing NS3 OLED
BuzzSpectrum.jpg (107.34 KiB) Viewed 2525 times
BuzzingNS3_OLED.JPG
Spectrogram of YouTube Video Buzzing NS3 OLED
BuzzingNS3_OLED.JPG (81.9 KiB) Viewed 2525 times
Last edited by pterm on 03 Dec 2019, 19:09, edited 1 time in total.
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