Same issue here. So far I have whittled it down to:
On a USB sound device:
Initiate a warp, upon the ship warp sound playing (not Aura “Warp drive active”) The sound cuts out
It doesn’t do it on the first warp after undocking from a station.
In windows volume mixer you can mute the bugged client and sound returns to all other programs.
Unplugging and plugging in USB headset will fix the audio (even on bugged client) until you warp again
With onboard sound and speakers:
Initiate a warp, upon the ship warp sound playing (not Aura “Warp drive active”) The sound pops loudly a few times.
It doesn’t do it on the first warp after undocking from a station.
Similar/related to this thread here Sound popping when entering warp and After todays update sound stutters while warping to the gates
I put in a bug report EBR-144467 IIRC this started on Feb 14th or 15th for me. Have tried clearing cache/settings, updating drivers, windows update, reinstalling EVE. And the problem spans across all accounts.