Some players manually swap the hurt files in their Minecraft directory for the legacy .ogg versions, often using tools like Audacity for clean audio extraction.
Since the classic sound is still a favorite for many players, several community-made resources allow you to restore it: minecraft_damage_oof_sound_effect_hd
Mojang changed the sound on November 13, 2011, during the release candidate for Version 1.0. The new sound was intended to fit any character avatar, regardless of gender. Some players manually swap the hurt files in
Why did they change the “ooo” damage sound? : r/Minecraft minecraft_damage_oof_sound_effect_hd
While technically a "grunt," it is widely referred to as the "oof" sound, though it should not be confused with the Roblox "oof" which originated from the 2000 game Messiah . How to Get it Back