Microsoft's VibeVoice-Realtime TTS has been successfully implemented on DGX Spark with full GPU acceleration, achieving a significant reduction in time to first audio from 2-3 seconds to just 766ms. This setup utilizes a streaming pipeline that integrates Whisper STT, Ollama LLM, and VibeVoice TTS, allowing for sentence-level streaming and continuous audio playback for enhanced responsiveness. A common issue with CUDA availability on DGX Spark can be resolved by ensuring PyTorch is installed with GPU support, using specific installation commands. The VibeVoice model offers different configurations, with the 0.5B model providing quicker response times and the 1.5B model offering advanced voice cloning capabilities. This matters because it highlights advancements in real-time voice assistant technology, improving user interaction through faster and more responsive audio processing.
