Oliver Kadel's 1618 Digital specializes in spatial audio sound design and engineering across linear immersive storytelling and interactive immersive experiences. Kadel also co-hosts The Immersive Audio Podcast with Monica Bolles, and I was recently featured in episode #109. I sat down with Kadel to get a survey of some of the spatial audio formats and production pipelines ranging from 3rd order ambisonics, object-oriented audio in game engines, working with the audio formats for Apple Immersive Video, Dolby Atmos, MPEG-H Audio, and emerging open standards like the Immersive Audio Model & Format (IAMF), which is "an audio container specification designed to revolutionize immersive audio experiences across a wide range of applications, including streaming, gaming, augmented reality (AR), virtual reality (VR), and traditional broadcasting." We talk about some of his favorite immersive audio productions, his process of getting a Ph.D. studying the impact of spatial audio on cognitive load, and some of the future trends of spatial audio.