http://nesdev.parodius.com/FDSSOUND_v1.1.txt http://nesdev.parodius.com/FDS.txt http://nesdev.parodius.com/disksystem.txt 波形はG-NSF等のメモリダンプで$4040-407Fを覗けば取り出せるかな。

You can extract DPCM sample (*.dmc) from NES/NSF by hand.Is there a batch extraction tool or something like that? Tell me if you know. Requirements Emulator with memory/register view tool. It's more preferable if frame advance is supported…