Reorganised slightly, and added my spc sample ripper + spc2it.

spctools/spc2it/sound.h

@@ -0,0 +1,28 @@
+/****************************************************
+*Part of SPC2IT, read readme.md for more information*
+****************************************************/
+
+#ifndef SOUND_H
+#define SOUND_H
+
+#include "spc2ittypes.h"
+
+#define ATTACK 0 // A of ADSR
+#define DECAY 1 // D of ADSR
+#define SUSTAIN 2 // S of ADSR
+#define RELEASE 3 // R of ADSR
+#define DECREASE 4 // GAIN linear decrease mode
+#define EXP 5 // GAIN exponential decrease mode
+#define INCREASE 6 // GAIN linear increase mode
+#define BENT 7 // GAIN bent line increase mode
+#define DIRECT 8 // Directly specify ENVX
+
+extern sndvoice SNDvoices[8];
+extern s32 SNDkeys, SNDratecnt;
+
+s32 SNDDoEnv(s32);
+void SNDNoteOn(u8);
+void SNDNoteOff(u8);
+s32 SNDInit();
+
+#endif