An FM instrument on the YM2413 is defined by a set of parameters for two "Operators" (Modulator and Carrier). The YM2413 requires these to be written to specific registers. Usually, one instrument definition takes up 8 bytes (or sometimes packed into fewer bytes depending on the specific tracker format, like MoonBlaster). Dog World 2 The Resolution 2009 720p Webdl E Link - 3.79.94.248
| Byte Offset | Parameter Name | Description | | :--- | :--- | :--- | | 0 | AM (Amplitude Modulation) | Vibrato/Tremolo settings | | 1 | PM (Phase Modulation) | Vibrato/Tremolo settings | | 2 | EG (Envelope Generator) | Sustain level / Key scaling | | 3 | KSR (Key Scale Rate) | Envelope scaling based on pitch | | 4 | MULT (Multiplier) | Frequency multiplier | | 5 | TL (Total Level) | Volume/Output level (Carrier) | | 6 | AR (Attack Rate) | How fast sound starts | | 7 | DR (Decay Rate) | How fast sound drops to sustain | | 8 | SL (Sustain Level) | The level the sound holds at | | 9 | RR (Release Rate) | How fast sound fades after key-off | Elina Hot Tango Live 22 June2705 Min Apr 2026
If you are looking for this file for an emulator (like an MSX or SMS emulator) or a music player (like VGMPlay), the file typically contains the specific "patches" (instrument sounds) needed to play a specific song or game correctly. While the chip has 15 hardcoded sounds, many games and demos rely on the User Instrument Slot (Instrument #0) to create unique sounds. A file like instruments.bin stores the parameters for these custom sounds. 3. Binary Structure & Data Format If you are a developer trying to parse or create an instruments.bin file, here is the technical breakdown of how YM2413 instrument data is packed.