The incredible growth in SoundHound AI's business hasn't been reflected in its stock price this year.SoundHound AI (SOUN 0.31%) develops conversational artificial intelligence (AI) applications designed to understand voice prompts and respond in kind, and it's in high demand from some of the world's biggest brands across industries like hospitality, automaking, and healthcare.Most of SoundHound's products are still in the early stages of commercialization, but the company's revenue is growing rapidly. Never ...