OCA-1

OCA-1 turns the M-VAVE FM-1 into an ocarina for games that listen. It plays one clear note at a time, so the Nintendo Switch 2 version of Ocarina of Time hears your songs through the console's microphone. The songbook has the game's twelve songs. The keys you need light up in turn, PLAY plays a song for you, and OCA-1 names each song you finish.

Version 0.9. Installing is at your own risk; the installer can put M-VAVE's own firmware back.

• Try it in the browser: the same code the FM-1 runs, with sound. No FM-1 needed.
• Install: from Chrome or Edge, with the FM-1 connected by USB.
• Manual: playing a song to the game, the screen, the controls.
• Download oca-0.9.fwsc: for the command-line installer, python3 tools/fm1_install.py oca-0.9.fwsc.
• Source: MPL-2.0. Built on fm1-base and felucca-bsp, from Felucca by Leo Kuroshita, Hügelton Instruments.

M-VAVE and FM-1 are trademarks of their owners. Nintendo Switch 2, The Legend of Zelda and Ocarina of Time are trademarks of Nintendo. OCA-1 is not affiliated with M-VAVE or Nintendo.