PRESSUR™ Acoustic Wellness - MVP Overview

Architecture & Logic

The app is built as a Decoupled SPA-lite (Single Page Application). It relies on a "Stateless" frontend that preserves state via localStorage. This ensures high performance, offline capability (PWA-ready), and zero database costs.

Core Architecture

• Storage: localStorage handles User Profiles, Favorites, and Session History.

• Session Management: js/session.js acts as the global controller for login/logout and user-data retrieval.

• Audio Engine: Powered by WaveSurfer.js for high-fidelity visualization and non-destructive audio manipulation.

Page & Script Map

1. Index (index.html): The gateway. Handles User creation and PIN authentication.

2. Categories (categories.html): The library. Dynamically renders tracks from js/library.json. Handles category filtering and visual "Favorite" indicators.

3. Session (session.html): The "Chamber."

   • Scrolling Visualizer: Uses minPxPerSec to provide a detailed view of 20min+ tracks.

   • Media Session API: Integrated for Bluetooth hardware control (Play/Pause/Metadata).

   • User-Bound Timer: Logic is unique to the User ID, preventing session crossover.

Future Roadmap

• Web Bluetooth API: Integration for "PRESSUR™ Sync" to control external chamber lighting and hardware.

• Heart Rate Monitor: Integration of BLE pulse sensors to display real-time BPM and adjust track intensity.

• Muse EEG Integration: Utilizing muse.js to monitor brainwave states:

  • Alpha (8--12 Hz): Target for Relaxation tracks.

  • Beta (13--30 Hz): Target for Concentration/Focus tracks.

  • Theta (4--7 Hz): Target for Drowsiness/Deep Meditation.

• Analytics Page: Converting stored totalMinutes and sessions_completed into visual progress charts.