Pete Jimson, the CEO of Frequency, discusses the evolution of audio advertising and the importance of frequency and personalization in audio campaigns. He explains how Frequency helps brands manage and optimize their audio creative, allowing for testing and personalization based on factors like location and weather. Pete emphasizes the need for brands to start thinking about frequency and personalization when they want to do more than just run one audio ad. He also discusses the future of audio advertising, including the automation of host read ads in podcasts. Overall, Pete highlights the opportunities and challenges in the audio advertising space and encourages brands to invest more in audio.