Implementing Word-by-Word Highlighting for Quranic Audio

uthuman

Asalam aliekum

Primary Technical Question:

What is the optimal technical implementation approach for synchronizing audio recitation with word-by-word text highlighting in a Quran web application?
HERE IS THE APPLICATION:
https://www.quranhub.cloud
PLEASE TEST THE APPLICATION

Specific Implementation Considerations:

What JavaScript libraries or Web Audio API methods work best for precise audio-word synchronization?
How should the Quranic text be structured (HTML/CSS) to enable smooth word-level highlighting transitions?
What timing data format and parsing method ensures accurate alignment between audio playback and text highlighting?
Are there existing Quran-specific audio timing datasets or APIs that provide word-level timestamps?
What performance optimizations are crucial for maintaining smooth highlighting on mobile devices and slower networks?

User Experience Requirements:

What visual highlighting techniques (color changes, underlines, background highlights) provide the clearest word-following experience?
How should the application handle user interactions (play/pause, seek, speed control) while maintaining sync?
What loading states and error handling are needed for large audio files and timing data?

Progressive Web App Specifics:

What caching strategies work best for audio files and timing data in a PWA context?
How can Service Workers ensure reliable audio playback and highlighting offline?
What PWA capabilities (background sync, push notifications) could enhance the recitation experience?

Current Application Context:

Target Application: QuranHub.cloud (Progressive Web App)
Required Feature: Real-time word highlighting synchronized with audio recitation
Technical Stack: [To be specified based on QuranHub's current implementation]

meezaan

uthuman Optimal is different from person to person.

The only question that can actually be answered here is about timing datasets - they are usually not for words but for ayahs for an audio file for an entire surah - https://everyayah.com/data/timings_files/ - for example.

The rest of the questions, IMHO, are far too generic for answer, which is probably why there aren't any.