A replica of the Knight Rider voice modulator that listens, understands and answers in KITT’s voice – offline on an NVIDIA Jetson Orin Nano. Speech recognition with Whisper, a local language model, a cloned voice with Qwen3-TTS and an LED panel running WLED whose bars move with the voice. When the external processing unit is reachable, a larger model with memory and web search takes over there.
How the box is built and how the technology behind it works together is described on the blog: KITT Voice Box: a voice modulator that really listens.