To me it is the opposite. Because long filters smear the time domain, making it shimmery and the highs are not anymore accurate (shimmering/diffuse blur), the clean bright razor sharp snappiness is gone (but I don’t mean harsh or grainy though - that would be a leaky filter)…
Both, too leaky filters, and also the long filter ringing gives me “digitus”, which is listening fatigue after a while. This is usually worst when combined with metal dome tweeters that have 20+ dB resonance peak around 25 kHz or so. In worst case I get tinnitus from that.
Most of the time I go with the defaults:
1x = poly-sinc-gauss-long (flat to 20 kHz and reaches -300 dB by 22.05 kHz)
Nx = poly-sinc-gauss-hires-lp
With either ASDM7EC-light or ASDM7EC-super modulator. Although for some cases I like also ASDM7EC-ul.
At one other forum I made listening test examples of filter ringing, by upsampling pulse transient from 6 kHz sampling rate to 48 kHz. This moves the ringing frequency to 3 kHz Nyquist from the RedBook’s regular 22.05 kHz and makes it 8x longer. So it is kind of “zoomed in” view to easily hear the effect.
The transient itself should sound a toneless “snap”, no particular frequency involved.
A very long linear phase filter sample: https://www.sonarnerd.net/tmp/long.flac
A medium length linear phase filter sample: https://www.sonarnerd.net/tmp/medium-lp.flac
A medium length minimum phase filter sample: https://www.sonarnerd.net/tmp/medium-mp.flac
A short linear phase filter sample: https://www.sonarnerd.net/tmp/short.flac
For RedBook, this ringing would have 22.05 kHz tone. For this example it is just moved down to 3 kHz and it is 8x longer so it is easier to hear.
If there’s another transient within the ringing period, the ringing gets amplified again. So in worst case it is constantly ongoing amplitude modulated tone, with amplitude modulated by the transients.