To provide an analysis of the audio market (excluding music), which includes the known audio categories, the popular players in each category, and whitespace opportunities in audio. Information about the players should include differentiating features, price points, number of users (DAU's and MAU's if available), any fundraising details, year founded, and what users are saying about them. The information will be used to determine the future of audio as technology improves. It will also be used to prove (or disprove) audio will be one of the next big mediums for consuming content.