Ym2413_instruments.bin !!link!! Today

ym2413_instruments.bin is a standard file container format used to store a collection of these custom instrument definitions. It allows a sequencer or music driver to quickly swap out the "User Patch" during playback (though usually requiring a brief pause or careful timing to avoid glitching the audio).

The file is a critical data component used by modern emulators and music software to accurately reproduce the sound of the Yamaha YM2413 , also known as the OPLL (FM Operator Type-L). This chip was a cost-reduced version of the more complex FM synthesis hardware found in arcade machines and high-end synthesizers of the late 1980s. What is the YM2413 (OPLL)? ym2413_instruments.bin