INES Mapper 019/Submapper table
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| INES Mapper 019 submapper table | ||
|---|---|---|
| Submapper # | Meaning | Note |
| 0 | Default | Expansion sound volume unspecified |
| 1 | Battery without WRAM, no expansion sound | Deprecated, as the PRG-NVRAM field is used for that |
| 2 | No expansion sound | |
| 3 | N163 expansion sound: 11.0-13.0 dB louder than NES APU | |
| 4 | N163 expansion sound: 16.0-17.0 dB louder than NES APU | |
| 5 | N163 expansion sound: 18.0-19.5 dB louder than NES APU | |
