Located deep within your game's directory structure, this file serves as a compressed vault for thousands of .fuz audio tracks, which combine lip-sync data with actual dialogue audio.
Actually, it is a big deal. The Voices-en0.bsa is unique compared to texture or mesh archives for one reason:
The file must reside in a highly specific location to be recognized by the game launcher. Skyrim - Voices-en0.bsa
Skyrim - Voices-en0.bsa specifically contains all the English-language voice files for the characters in The Elder Scrolls V: Skyrim Special Edition . This includes: NPC dialogue lines. Player character voices (shouts, battle cries). Dialogue scenes triggered by quests.
Does Skyrim - Voices_en0.bsa affect performance? Generally, no. It is loaded into RAM on demand by the game’s streaming system. However: Located deep within your game's directory structure, this
Specifically, this file contains for the English language version of the game.
The name itself tells you everything you need to know: Skyrim - Voices-en0
The total size of the English voice data for Skyrim (including the base game and the Dragonborn / Dawnguard DLCs) is roughly 2–3 GB. Archiving tools and game engines sometimes have practical file size limits, so Bethesda split it into en0 and en1 .