This mod seeks to enhance the sounds to be of higher quality.

The Sounds Replaced:
s_e_ambient_bird1
s_e_ambient_bird2
s_e_ambient_crypt
s_e_ambient_rain1
s_e_ambient_thunder
s_e_ambient_wind_01
s_e_ambient_wind_01b
s_e_ambient_wind_02
s_e_ambient_wind_ice_cavern
s_e_ambient_woods_01
s_e_bow_shoot2
s_e_burning_large
s_e_burning_small
s_e_crossbow_fire
s_e_die_female
s_e_die_giant_spider
s_e_die_spider
s_e_die_spider_giant (not sure why there were two)
s_e_env_bats
s_e_env_birds
s_e_env_brook
s_e_env_brush_rustle
s_e_env_button_stone
s_e_env_crickets
s_e_env_door_standard_open
s_e_env_haunting
s_e_env_ocean
S_e_env_water_drip_single
s_e_env_water_slosh3
s_e_env_water_slosh4
s_e_env_waterfall
s_e_env_wolf_howl
s_e_explode
s_e_gui_put_down_gold
s_e_hit_arrow_flesh
s_e_hit_arrow_generic
s_e_hit_arrow_steel
s_e_hit_arrow_stone
s_e_hit_arrow_wood
s_e_spider_attack
s_e_swing_01
s_e_swing_02
s_e_swing_03
s_e_swing_04

Most of these were from a previous obscure mod, with a few edits (such as making them quieter or not as long), and at least one of them was pulled from an open source project of another game.

Changes as of v0.3.5
01. Replaced s_e_env_bats
02. Replaced s_e_bow_shoot2
03. Replaced s_e_hit_arrow_flesh
04. Replaced s_e_hit_arrow_stone
05. Replaced s_e_hit_arrow_wood
06. Replaced s_e_ambient_crypt
07. Replaced s_e_env_door_standard_open
08. Replaced s_e_crossbow_fire
09. New s_e_spell_summon_01
10. New s_e_gui_put_down_armor_chain
11. New S_e_gui_put_down_armor_leather
12. New s_e_gui_put_down_armor_metal
13. New s_e_gui_put_down_armor_plate
14. New s_e_gui_put_down_jewelry
15. New s_e_gui_put_down_sword
16. New s_e_gui_put_down_potion
17. New s_e_gui_put_down_robe
18. New s_e_gui_pick_up
19. New s_e_gui_spell_book