Hi Simon,

Following on from what you said, I had a look through the mathematics at Wikipedia (below) and it parallels what you're saying. As Sweetwater point out, apparently with Upsampling the frequency, it's possible to add spectral images that require lowpass filtering.

https://www.sweetwater.com/insync/upsampling/

https://en.wikipedia.org/wiki/Upsampling

Regards,
Noel

Last edited by Noel96; 06/04/21 03:50 PM.

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