A while back when I had first downloaded and played through the Hoarfrost Castle MOD, this problem occured, but eventually after switching the MOD around in my load order, it stopped.
Well this time on a fresh character when the noise started, I simply removed the MOD altogether, thinking the noise was related. After returning to my new game, I realized this was not the case, as the sound continued every few seconds. I started a second new character, where the save data completely unrelied on the MOD, and the problem started almost immediately, with the sound going off at the character creation screen.
I have no idea whatsoever what would cause this, so I'm not sure what information is needed. I don't think its related to my sound card since the problem did not occur until after installing several MOD's (most notably, Hoarfrost Castle). Here's my load order off OBMM, and any help with this would be greatly appreciated. For now, I'm playing with the sound off.
Oblivion.esm
Oscuro's_Oblivion_Overhaul.esm
Better Cities Resources.esm
Kvatch Rebuilt.esm
CM Partners.esm
Unofficial Oblivion Patch.esp
Oblivion Citadel Door Fix.esp
UOP Vampire Aging & Face Fix.esp
Unofficial Shivering Isles Patch.esp
Living Economy.esp
Scribe Supplies.esp
VaultsofCyrodiilBC.esp
Level_Rates_Modified_x5.esp
Alternative Start by Robert Evrae.esp
DLCHorseArmor.esp
DLCHorseArmor - Unofficial Patch.esp
MD_FasterHorseTurning.esp
ImpLegion Horse Armour.esp
Guards.esp
A Imperial Outpost - Fort Nova Varos .esp
A Imperial Outpost - Fort Novi Sad .esp
ImpeREAL Empire - Unique Forts.esp
Oscuro's_Oblivion_Overhaul.esp
OOO-Water_Weeds.esp
OOO-Respawn_Two_Weeks.esp
Cutthroat Merchants.esp
Living Economy - item.esp
The Commander's Armor.esp
Harvest [Flora].esp
300_Brocade_Outfits.esp
JG Elven.esp
Adonnays Ranger Coats.esp
mythic dawn armor.esp
Imperial Legion Scout Armour.esp
dragmod_0_2.esp
phinx_portable_tent.esp
Cryos Ordinator Lite.esp
IE-ARMv1.esp
TheForgottenShields.esp
Lost Paladins of the Divines.esp
BluWill.esp
Elder Council Plugin.esp
Castle Bedwyr 1.0.0esp
Region Revive - Lake Rumare.esp
Castle_Almgard-V2.esp
HoarfrostCastle.esp
DLCOrrery.esp
DLCOrrery - Unofficial Patch.esp
DLCFrostcrag.esp
DLCFrostcrag - Unofficial Patch.esp
Harvest [Flora] - DLCFrostcrag.esp
DLCThievesDen.esp
DLCThievesDen - Unofficial Patch.esp
DLCThievesDen - Unofficial Patch - SSSB.esp
DLCVileLair.esp
DLCVileLair - Unofficial Patch.esp
DLCMehrunesRazor.esp
DLCMehrunesRazor - Unofficial Patch.esp
DLCSpellTomes.esp
DLCSpellTomes - Unofficial Patch.esp
DLCShiveringIsles.esp
DLCBattlehornCastle.esp
DLCBattlehornCastle - Unofficial Patch.esp
Harvest [Flora] - Shivering Isles.esp
Harvest [Flora] - DLCVileLair.esp
The Lost Spires.esp
LostSpiresImpeREALFortsPatch2.esp
Knights.esp
CM Partners NPC.esp
CM Partners More NPCs.esp
CM Partners Special NPCs.esp
CM Partners Marker NPCs.esp
Kvatch Rebuilt.esp
Kvatch Rebuilt - OOO Compatibility.esp
Knights - Unofficial Patch.esp
Better Cities Full.esp
Better Imperial City.esp
Better Cities Full FPS Patch.esp
Better Imperial Citiy FPS Patch.esp
Better Cities - VWD of the IC.esp
Better Cities - No LEYAWIIN Flooding.esp
Better Cities.esp
CM Partners Better Cities by Howabominable.esp