Which HQP Filter are you using? [2015-2023]

[dabassgoesboomboom]

@Dlwr32722

Let me know if you can come up with a simple explanation to a lay guy.

See this post below. Jussi (the developer) has posted a tonne over the years, here and Audiophile Forum.

HQPlayer vs. Roon

Upsampling is same as oversampling, but used to emphasize DAC side process and that proper digital filters are used for it (which is not always the case for oversampling). Oversampling itself is explained here: Digitally sampled signal has spectrum that repeats itself at multiples of sampling rate, these are called images. Starting from band 0, every even spectrum is normal forward frequency content and every odd spectrum has inverse frequency content. To properly reconstruct analog signal…