NSF is the sound file format for the Ricoh 2A03 chip used in the Nintendo NES/Famicom game console. The nsf filetype also supports additional sound expansion chips. At BotB, expansions are only allowed in the "'[[nsfplus (format)[nsfplus]" format. The nsf format is for 2A03 '[b]only'[/b]. The 2A03 has five sound channels: two pulse waves, one triangle, one noise, and one DPCM channel.
