Mirelo, an AI audio startup, has successfully raised $41 million in a seed funding round co-led by Index Ventures and a16z. The funding round also saw participation from Atlantic.vc and TriplePoint Capital. Mirelo is focused on developing AI-based foundational models for video and audio layers, aiming to transform the audio creation process in videos and games with its generative audio technology. The company's video-to-audio model offers rapid generation of high-quality, synchronized sound effects and flexible editing capabilities, catering to the detailed needs of creators.