SYNAESTHESIA

VR Sound Visualizer for Meta Quest

Features

• VR-native, world-space UI for playback (play/pause/next/loop/mute/settings, etc.)
• Six music visualization styles (Sparkles, Fireworks, Waves, Butterfly, Psychedelic/Kaleido, etc.)
• Microphone mode (Quest mic, live reactive visuals)
• Spatial ambients near bubbles and central music player
• Works in Editor (PC/Link) and on Meta Quest 3 (OpenXR, URP)

Requirements

• Unity 6 (6000 LTS) with URP
• Packages: OpenXR, XR Interaction Toolkit, XR Hands
• Target: Meta Quest 3 (Android, OpenXR, Single Pass Instanced)
• Audio: 48 kHz system sample rate

Quick start

1. Clone the repo (enable Git LFS).
2. Open in Unity 6 (URP). When prompted, let Unity upgrade materials.
3. Open scene: Assets/_Scenes/Soundspace.unity.
4. Project Settings → Audio

• System Sample Rate: 48,000 Hz
• DSP Buffer Size: Default or Best Latency

5. Player Settings → Android

• Scripting Backend: IL2CPP
• Target Architectures: ARM64
• XR: OpenXR (Meta Quest)
• Stereo: Single Pass Instanced (SPI)

6. Mic permission. Make sure Plugins/Android/AndroidManifest.xml contains:

• Add bootstrap using:UnityEngine; #if UNITY_ANDROID && !UNITY_EDITOR using UnityEngine.Android; #endif public class MicPermissionBootstrap : MonoBehaviour { void Start() { #if UNITY_ANDROID && !UNITY_EDITOR if (!Permission.HasUserAuthorizedPermission(Permission.Microphone)) Permission.RequestUserPermission(Permission.Microphone); #endif } }

7. Run in Editor (PC or Link): click the Microphone Bubble, then Record. Build to Quest: first launch will show the Android mic prompt—allow it.

Controls

• Tap a bubble → enter music mode for that bubble’s playlist.
• Tap the Microphone Bubble → show mic canvas; press Record to visualize your own sound.
• Settings button → choose visualizer mode; press again to go back.
• Home button → exit to all bubbles.

Build instructions (Quest)

• File → Build Settings → Android → Switch Platform.
• Add Soundspace.unity to Scenes in Build.
• Player Settings: see Requirements above (ARM64, OpenXR, SPI, Linear).
• Build & Run (USB or Wi-Fi).
• First mic use → Android prompt → Allow.

Demo