現代的資訊量爆炸，隨著科技和網路的進步，"聲音"的使用逐漸成為最新的趨勢。 "語音"與"技術"的結合即將帶來下一次技術革命，進入"聲音經濟"時代。 聲音的優勢包括可以充分利用現代人的越發碎片化時間和剩餘的注意力，例如：運動或通勤時。 此外，聲音減少了獲取訊息所需要的勞動和時間，可以隨時隨地獲取，甚至可以略過螢幕的使用。 而這些滿足現代人需求的特點，也促成了"隨播音訊 (On-demand audio)"的出現和流行。
隨播音訊是需下載的任何數位音頻，而非在流媒體上實時觀看。 而其中發展最突出的就是近年來討論度極高的播客(Podcast) 。2020 年是"台灣播客元年"， 雖然它不像在美國已經流行多年，但近年來投入播客創作或收聽播客節目的人數迅速增長，成為台灣近年來最熱門的話題之一。
從聽眾偏好的節目內容來看，播客已經成為聽眾日常獲取信息或學習知識的媒體角色。 很多學習內容和教育知識都可以通過隨播音訊來收聽，讓知識不再只是線性傳播，不受既定時間和空間的限制，且內容選擇更多元。 播客可以充分提供更加個人化、人性化的學習方式，且不局限於正規教育或輔助正規課程的教材，它能夠提供非常多元的學習內容，讓用戶在耳朵空閒的時候進行自我學習。
本研究旨在使用文獻分析、問卷研究和深入訪談，來調查和分類台灣的自我學習播客的用戶類型及其動機。 並以創新擴散理論為觀點，分類出的不同類型目標用戶，探討影響自我學習播客之創新擴散過程的決定因素。本研究歸納出四種不同的自我學習播客用戶類型，每種類型都有其獨特的聆聽習慣和內容偏好，揭示了播客作為自我導向學習的重要工具的能力。同時，也從創作者的視角，深入了解節目營運的考量與產業的實際面貌，並針對不同類型的目標用戶，提供優化自我學習播客節目之創新擴散的指南。
本研究結果為內容創作者提供寶貴的見解，用於定制內容和針對不同聽眾群體的營銷策略，增強了這種媒介的吸引力和教育潛力。這些研究發現為進一步的研究和實際應用奠定了基礎，提供了可以用來提高自我學習播客效果和覆蓋範圍的見解。

In the modern era of information explosion, with the advancement of technology and the Internet, the use of "Voice" has gradually become the latest trend. The combination of "Voice" and "Technology" is about to bring the next technological revolution, entering the era of the "Voice economy." The advantages of voice include can make full use of the fragmented time of modern people, for example: when exercising or commuting. In addition, voice makes the labor and time required to obtain information further reduced because information can be obtained at anytime and anywhere, even without using a screen. These features that meet the needs of modern people have also contributed to the emergence and popularity of "On-Demand Audio.” On-Demand Audio is any digital audio that is downloaded on demand rather than being viewed live on a stream. Podcast is the most prominent development in on-demand audio, and 2020 is "the first year of Podcasting in Taiwan." The number of people who have invested in Podcast creation or listened to Podcast programs has grown at a rapid rate. It has become one of the hottest topics in Taiwan in recent years.
Podcast has become a media role that listeners get information or learn knowledge daily. So that knowledge is now more than just a linear spread and not limited to established time and space. Podcasts can fully provide a more personalized and humanized learning method, as well as learning content that is diverse and not limited to formal education or the teaching materials that assist formal courses. It allows users to carry out multiple improvements when their ears are free. However, few works of literature study particularly about the Podcast on self-learning content.
This research aims to use research methods such as literature analysis, questionnaires, and in-depth interviews to investigate and classify the user types and motivations of self-learning Podcasts in Taiwan. And in the perspective of innovation diffusion theory, to explore the process of innovation diffusion in the Podcast on self-learning and the determinants that affect diffusion. The study identifies four distinct types of self-learning Podcast users, each with unique listening habits and content preferences, revealing the capacity of Podcasts as significant tools for self-directed learning. Additionally, it delves into the perspective of content creators, gaining insights into program operation considerations and the practical aspects of the industry. Finally, the study provides guidelines for optimizing the innovation diffusion of self-learning Podcast programs for different types of target users.
The research result offers valuable insights for Podcasters in tailoring content and marketing strategies for diverse audience groups, enhancing the medium's appeal and educational potential. The findings lay the groundwork for further research and practical applications, providing insights that can be leveraged to augment the effectiveness and reach of self-learning Podcast.

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