Doppler
Java mod listed for Minecraft 1.18–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
The Doppler effect is a real-life sound phenomena that shows up as a frequency change when either you the listener or the source of the audio is moving, its better explained here: Doppler Wiki.
Requires: Mod Menu (in version 1.0 only) | Fabric API
Compatible with Simple Voice Chat and Plasmo Voice.
Showcase
https://www.youtube.com/watch?v=dTkfkTWfMPQ
Config
Default effect "scale" is at 40%, noticeable but not too exaggerated, though I havent tested all means of movement next to audio sources, so you're free to change it in ModMenu's settings screen for the mod or in the config file located at <minecraft>/config/doppler.cfg (value is a decimal with ranges from 0-1 (default: 0.4), though no hard limits).
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.10, 1.21.5, 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Doppler-1.2.2+1.20.1_forge.jar — drop this file into the mods folder
- Download size: 64 KB
- Download link checked 2 Oct 2026 — working
These come from our own check of the pack file, not from the source page.