PowerSync
Multitrack Binaural Audio Mixer for Relaxation, Focus, and Creativity
PowerSync is a multimedia platform where users create personalized audio environments using drag-and-drop binaural beats, helping them focus, relax, or meditate more effectively.
▸FRONTEND:
▸BACKEND:
▸DATABASE:
▸AUTHENTICATION:
▸API INTEGRATION:
▸DEPLOYMENT:
_01▸System Architecture & Database Schema
Designed a scalable backend architecture using a PostgreSQL database managed through Prisma ORM. Modeled core entities (Users, Tracks, Sessions) and optimized the schema for fast relational queries, supporting real-time audio session state persistence.
_02▸Custom Web Audio Engine
Built a modular audio engine using the Web Audio API in TypeScript. Engine architecture supports asynchronous loading, dynamic buffer management, volume/mute controls per track, and low-latency synchronized playback across 21 independent audio nodes.
_03▸Authentication, Secure Streaming, and API Layer
Integrated Auth0 for OAuth2 user authentication. Developed a secure Next.js API layer that generates signed URLs for protected audio assets, ensuring authenticated, time-limited access. Implemented token validation and session management on both frontend and backend.
_04▸Drag-and-Drop Audio Mixer Interface
Engineered a smooth drag-and-drop interface using React DnD. Implemented dynamic track assignment based on drop zones, live visual feedback during dragging, and instant audio node connection on drop, ensuring seamless user interactions with minimal latency.
_05▸Dynamic Audio Icon Library
Created a modular audio icon library system where each icon represents a binaural or ambient sound. Built dynamic metadata loading, real-time previewing on hover, and flexible categorization for easy expansion. Icons connect directly to underlying Web Audio nodes upon selection.
Engineered a modular frontend architecture emphasizing performance and scalability. Developed serverless Next.js API routes for secure audio asset streaming and user account management. Integrated Stripe for subscription management and laid the groundwork for future real-time, multiplayer audio mixing sessions.
PowerSync successfully delivers a fully in-browser multitrack audio experience with proven user engagement and subscription revenue. The platform is architected for scale and ready for expansion into collaborative features, mobile apps, and enterprise wellness markets. Open to strategic partnerships, investment, or acquisition opportunities.