So a Thai entrepreneur claimed on his impressions of the Nucleus that he ‘detected’ higher SPL and assumes that the device has ‘more powerful’ output compared to his Mac mini (with Roon installed) during playback. I told him that’s not supposed to be the case, yet he affirmed his claims, saying that the phenomenon wasn’t just loudness normalization provided by Roon software, because it also affects Tidal playback.
How is this possible? I personally think Roon engineers do not want to screw up bit perfect playback, and that his claim is false, or made not using viable approaches. I mean, how on earth can the very same audio file has varying perceived loudness during ‘bit-perfect’ playbacks on the same DAC!
But if it is so (unfortunately), is there some kind of DSPs involving to get the music louder for psychoacoustic purpose?