Hi razvitasca.
First, what is the problem your having with Vipmud and Nvda? It seems fine to me in the muds I've played with it. I do recall the old 1.0 version of Vipmud wasn't supposed to run with nvda, but 2.0 runs fine as far as I can gather.
As regards soundpacks, Cosmic ragehas a great soundpack for vipmud that can be downloaded in game, promethius also has one, while six dragons and materiamagica have a few sounds.
I believe Mta's soundpacks for cyber assault and clok were for mushclient rather than vipmud.
As regards sounds though to be honest I would personally recommend getting used to playing muds just as text. Muds are text games, and while it's awesome when a mud has a soundpack, if you limit yourself to only those muds with sounds, you'll be disappointed every time, heck other than cosmic rage and alteraeon I've never seen that many muds with really extensive sounds anyway (those in materiamagica and six dragons are only for some extra atmosphere).
There are lots of great muds out there that do not use sounds at all.
personally I'd recommend cosmic rage for a great space game with good activities, Frandom if you like quests and puzzles, and if your heavily into combat Aardwolf or erion, while if you want lots of player interaction extensive crafting clok or rp, ---- then again you can also look in the five muds topic for lots of information on people's favourite muds so I won't repeat what I said there.
Lastly I'll mention Alteraeon.
I myself very much like Vipmud, I find it straight forward and easy to use and generally my client of choice when playing muds.
However, I would really! recommend you download the MushZ pack for alteraeon.
This is notjust a soundpack, it's virtually a full on audio rpg interface and functions as a separate program on your computer.
Most muds are text, they play as text games and should be got used to in that manner, but Alteraeon with MushZ is the one exception to that role, indeed in terms of how it plays with the mushZ client it's pretty much different from every other mud out there.
So I would not recommend playing Alteraeon with Vipmud, but downloading mushZ instead for that game, though personally I do enjoy vipmud for other things, indeed I'm trying cyber assault with it right now.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)