ECHO Sound Engine

ECHO Sound Engine brings physical speaker systems and venue acoustics to Minecraft.

Build systems using subwoofers, studio monitors, and line array modules. Audio played through these speakers responds to distance, direction, walls, openings, room size, and the listener's position.

For the best experience, USE HEADPHONES.

ECHO Sound Engine does not replace every vanilla Minecraft sound. Its physical audio simulation applies to music and audio played through the mod's speaker system.

 

Features

Physical speaker systems

• Subwoofer, Studio Monitor, and Line Array Module blocks

• Speaker clustering for building larger sound systems

• Power and range scaling based on system size

• Directional line arrays with adjustable vertical tilt

• Left, right, and combined channel selection

• Adjustable sample shift from 0 to 30 ms

• Independent mixer and five-band parametric EQ controls

Spatial audio

• Distance-based attenuation

• Real sound propagation delay

• Directional speaker response

• Wall occlusion based on material and thickness

• Reduced high frequencies behind walls and over long distances

• HRTF-compatible OpenAL positioning

• Speaker-specific harmonics and power response

Dynamic venue acoustics

ECHO analyzes the environment around each speaker system instead of applying one fixed reverb preset.

• Room size and enclosure detection

• Reflection and absorption calculations

• Open-air and semi-open venue handling

• Dynamic reverb decay

• Multiple acoustic venue tiers

• Smooth transitions between acoustic zones

• Two independent room reverb buses

• Acoustic heatmap and scan visualization on the Sound Tablet

Playback controls

Use the Sound Tablet to:

• Search for a track or paste a supported URL

• Start, stop, pause, and seek playback

• Adjust system power and input gain

• Control individual speaker groups

• Configure mixer levels and parametric EQ

• Inspect the current acoustic environment

Supported internet sources include YouTube, SoundCloud, and direct HTTP(S) audio sources. Availability may change when third-party services update their systems.

Internet playback connects to the service selected by the user and requires an active internet connection.

Multiplayer

The mod supports synchronized multiplayer playback. Each player hears the same session from their own position, including individual distance, direction, wall occlusion, and room acoustic effects.

ECHO Sound Engine must be installed on both the server and every connecting client.

Requirements

• Minecraft 1.20.1

• Fabric Loader 0.15.7 or newer

• Fabric API

• Java 17 or newer

Installation

1. Install Fabric Loader for Minecraft 1.20.1.

2. Install Fabric API.

3. Place echosoundengine-1.0.0.jar in the mods folder.

4. Install the mod on both the server and clients when playing multiplayer.

5. Launch Minecraft using the Fabric profile.

Internet audio libraries are included in the mod. LavaPlayer, Jackson, Rhino, and the decoder libraries do not need to be installed separately.

Getting started

1. Open the ECHO Sound Engine creative inventory tab.

2. Place Subwoofer, Studio Monitor, or Line Array blocks.

3. Right-click a speaker to configure its channel, sample shift, and supported direction settings.

4. Use the Sound Tablet near the speaker system.

5. Search for a track or paste a supported URL.

6. Adjust power, input gain, mixer, and EQ settings.

7. Start playback and move through the environment to hear the spatial response.

Optional compatibility

Replay Mod integration is supported when Replay Mod is installed. ECHO playback will follow replay pause, resume, and cleanup states. Replay Mod is not required.

Configuration

A live tuning configuration file is created after the first launch:

.minecraft/config/audiophilecraft_tuning.json

It can be edited while Minecraft is running and reloads automatically. Existing customized values are preserved during compatible configuration migrations.

License

ECHO Sound Engine is distributed under an All Rights Reserved license. Official, unmodified releases may be downloaded, installed, and used for Minecraft gameplay.

Third-party components retain their respective licenses and notices.

Changelog

ECHO Sound Engine 1.0.0

Initial public release.

• Added Subwoofer, Studio Monitor, and Line Array speaker systems

• Added physical distance attenuation and propagation delay

• Added wall and material-based sound occlusion

• Added directional speaker response and adjustable line array tilt

• Added room analysis, venue tiers, and dynamic reverb

• Added acoustic heatmap visualization

• Added Sound Tablet playback, mixer, and EQ controls

• Added synchronized multiplayer playback

• Added audio device recovery

• Added optional Replay Mod playback synchronization