Adding directly settable commands (instead of volume up/down, set volume to xx)

AVR Working Controller/AVRCommandDecoder.cpp

@@ -506,20 +506,22 @@ const char *ProgramName(uint8_t val) {
 //		db = 0.5634 x - 112.11
 //	 for values 200 to 255
 //		db = 0.5 x - 99.5
-// Single Linear
+// Single Linear according to the manual
 //		db = 0.5574 x - 111.45
+// Single Linear according to the on-screen display of Volume
+//		db = 0.5 x - 99.5
 //
 const char *VolumeDB(uint8_t val) {
 	static char buf[16];
 	float m, b;
 
-	if (val < 200) {
-		m = 0.5634f;
-		b = -112.11f;
-	} else {
+	//if (val < 200) {
+	//	m = 0.5634f;
+	//	b = -112.11f;
+	//} else {
 		m = 0.5f;
 		b = -99.5f;
-	}
+	//}
 	float db = m * val + b;
 	sprintf_s(buf, sizeof(buf), "%+3.1f db", db);
 	return buf;