Archive of audio lectures

A web platform for browsing and conveniently listening to hundreds of historical lectures recorded between 1966 and 1977. The project simplifies navigation and search, and makes listening comfortable, including on mobile devices.

Functionality:

— Structured lecture archive with navigation by categories and dates
— Smart search with support for abbreviations and spelling mistakes
— Playback progress saving with the ability to continue from the same place
— Favorites and saved settings with cloud synchronization after Google authorization; otherwise, settings are stored in the browser using localStorage
— Support for playback controls from the device lock screen via the Media Session API
— Responsive interface
— Can be installed on a phone as a Progressive Web App (PWA)

Additional work:
Audio restoration and noise reduction using AI tools to improve the quality of more than 3,500 recordings. A separate platform was developed — demo: https://audio-audit.pages.dev/ — for processing lectures using various audio engines to remove noise and echo.

Technologies:

— SvelteKit
— Firebase
— PWA
— Cloudflare R2 storage