Building Tune Beats: Audio memory and rhythm sequencing in Expo

The Motivation Behind the Project

Tune Beats blends musical memory with rhythm gaming. Players watch synthesizer pads illuminate to melodic beats and tap them in sequence with correct timing. Available on the Google Play Store.

Core Features and Design Goals

• Melodic Sequence Playback: Dynamic musical patterns that challenge and develop audio memory and tempo perception.
• Retro Synth Aesthetics: Glowing neon turntables, colorful equalizer bars, and pulsing note pads.
• Gentle Progression: Friendly learning curve suitable for young children, casual gamers, and music lovers.
• Zero Inappropriate Content: Fully compliant with COPPA and Google Play Families guidelines.

Technical Implementation

• Engineered an ultra-low-latency audio playback pipeline using Expo Audio with pre-buffered synthesized scale notes.
• Coordinated visual pulse animations with audio playback timers to guarantee audio-visual synchronization without jitter.
• Protected user privacy with strict non-personalized ad requests and global G rating enforcement.

The Technology Stack

Built with React Native, Expo Audio, TypeScript, and react-native-google-mobile-ads.

Final Reflections

Audio timing in cross-platform mobile requires careful asset preloading and decoupled rendering timers. The game is live on the Google Play Store.