
Acoustic API
Server-driven audio playback for NeoForge mods!
Screenshots

About this Mod
Acoustic lets a server-side mod start, stop, and update custom OGG sounds on selected clients. It is built for ambience, scripted music, boss themes, events, and other cases where vanilla sounds.json playback is too limited.
Features
- Server-side API for targeted sound playback.
- Direct OGG streaming from mod assets.
- Loop counts, infinite loops, start offsets, and end offsets.
- Fade in, fade out, runtime volume changes, and runtime pitch changes.
- Optional player predicates evaluated on the server before packets are sent.
- Music arbitration for exclusive tracks that can fade or block vanilla music.
- Kotlin DSL and Java-friendly entry points.
Requirements
- Minecraft 1.21.1
- NeoForge 21.1+
- Kotlin for Forge 5.3+
Acoustic is a library-style mod. It does not add gameplay content by itself; it provides an API that other mods and server logic can use.
Available Versions
How to Install Acoustic API on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Acoustic API". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Acoustic API server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Acoustic API compatible with neoforge?
Acoustic API officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Acoustic API – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Acoustic API consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Acoustic API with just one click on your server.