Real-time Audio Streaming for Language Learning

The implementation required solving complex technical hurdles: ensuring glitch-free audio continuity when new chunks arrived rapidly, maintaining a consistent audio queue with dynamic playback speed adjustments, accurately detecting stream completion without false triggers, and achieving optimal cross-platform performance between native iOS audio APIs and React Native.

We developed a comprehensive streaming solution featuring:
- Native iOS audio bridge using AVAudioEngine with timePitch unit for playback speed control
- Sophisticated queuing system merging audio chunks to prevent gaps
- Buffer tracking mechanism monitoring playback status - Precise closeStream signal system for accurate stream completion detection
- Seamless React Native integration with native iOS implementation  

- Reduced audio output wait time from seconds to near real-time - Achieved near-zero playback glitches with consistent sub
-150ms latency per chunk
- Enhanced user experience for TTS-based chat and voice assistant features
- Improved overall application responsiveness