Tracker Mini high-pitched noise when sampling

Has anyone here experienced a high-pitched noise when sampling by mic or line in? I have read one post where the user was advised to obtain a RMA and return to Polyend. Today however I have been told by Polyend that this is a bug that will be fixed in the next firmware update. Can anyone clarify if they experienced the bug and if so what they were told? Thanks

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I had this happening. It turns out it only happened when my brightness was on medium, so try messing with your brightness. I have not noticed noise from the line-in - only the mic.

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NICE CATCH! :heart_eyes:

I can confirm - when the Config for Display brightness is set to Medium, i also hear a high frequency hiss when using the Mic Input.

This does not happen when setting the brightness to Low or High.

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Thank you! Polyend have confirmed they are working on a fix.

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Hi @scottdowson , could you please confirm the nature of your problem? Does it also happen only with Mic input when screen is on Medium brightness? Or you experience it with other settings also? Thanks for your support and patience!

It makes high frequency noise by itself. Mine MK2 unit makes this noise only at medium screen brightness

There is a mk2?

If your unit is new (around 2021+), it is MK4

Just to prevent any confusion - this is about the Polyend Tracker Mini and not the OG Tracker and it’s revisions.