Converting Audio Published on the NDL Historical Sound Archive to mp4
Overview I had an opportunity to convert audio published on the National Diet Library Historical Sound Archive (hereinafter “Rekion”) to mp4, so here are my notes. Format Provided by Rekion Rekion provides files in m3u8 format. For example, let’s check the following: “Lecture: Union of Morality and Economy (Part 1).” https://rekion.dl.ndl.go.jp/pid/3574643 By checking with developer tools, you can confirm that it is accessible from the following URL. https://rekion.dl.ndl.go.jp/contents/3574643/83389ec6-2b45-4fdd-88d6-89628841039f/317d6ab4-32ec-4085-88e6-cfe36ffd34c3/317d6ab4-32ec-4085-88e6-cfe36ffd34c3_hls.m3u8 The IDs that make up this URL can be found in the response from the following API. ...