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It's the multi-layer boards - fix most problems :-)<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Mattias Rickardsson <mr@analogue.org><br>
<b>Sent:</b> 09 February 2024 19:25<br>
<b>To:</b> Mike Bryant <mbryant@futurehorizons.com><br>
<b>Cc:</b> Richie Burnett <rburnett@richieburnett.co.uk>; Synth DIY <synth-diy@synth-diy.org><br>
<b>Subject:</b> Re: [sdiy] How to design out "usb noise"?</font>
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<div dir="ltr" class="x_gmail_attr">Mike Bryant <<a href="mailto:mbryant@futurehorizons.com">mbryant@futurehorizons.com</a>> skrev:<br>
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<div style="">Agreed it needs slightly more DSP. But you probably had to spend longer avoiding any 1kHz getting onto the analogue output.</div>
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<div dir="auto">Getting curious here - is this audioframe-frequency disturbance a common problem? I've honestly not had much issues with it, and it would be handy to understand why. Sometimes on a prototype there's been a little 1.5 kHz tone sticking its head
up above the noisefloor, but then my EE looks over his power supply caps etc and then it's gone. </div>
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<div dir="auto">Wonder if it's thanks to the layout, the power structure, the processors used, the multi-layer boards, or just his superpowers? :-)</div>
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<div dir="auto">/mr</div>
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