Nitrocosm | Dreamcast Startup Sound Explained @Nitrocosm | Uploaded December 2020 | Updated October 2024, 3 hours ago.
In this video, the Dreamcast's startup sound and BIOS software are discussed. A re-creation of the startup sound is also attempted.

NOTE: There is an addendum video with a correction to the re-construction part: youtube.com/watch?v=p9qDXKFgkNc

CORRECTION: In the script for this video, the CPU / GPU specs read: "32-bit, 200 MHz RISC CPU, 128-bit 100 MHz GPU". I am not sure how or why the "(ARM)" text was added in the video but it's incorrect.

0:00 Introduction
0:36 Technical overview
2:20 Examining the BIOS
2:56 The startup audio in the BIOS
4:58 The BIOS software
5:30 Re-creating the startup sound
10:48 The story of the Dreamcast and Sega
12:00 Conclusion

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ATTRIBUTIONS:

Dreamcast photo: By Asim Saleem (Asim18) - Own work, CC BY 3.0, commons.wikimedia.org/w/index.php?curid=8782822