Is SoundHound AI stock undervalued, overvalued, or somewhere in between? Find out in this detailed analysis of the company's robust contract backlog.Is it too late to buy SoundHound AI (SOUN 6.15%) stock today? If so, my own investment five months ago will turn out to be a terrible deal in the long run.The artificial intelligence (AI) expert providing high-quality voice control tools has seen a 25% stock price drop since then. But I'm quite convinced that time and business trends will prove me right.In fact ...