Applied all the mainline PCem PCI commits;

Applied patch from James-F that makes the Sound Blaster filters more accurate.

src/SOUND/filters.h

@@ -131,10 +131,10 @@ static __inline float high_cut_iir(int i, float NewSample) {
 
 
 #undef NCoef
-#define NCoef 1
+#define NCoef 2
 
 static __inline float sb_iir(int i, float NewSample) {
-/*    float ACoef[NCoef+1] = {
+    float ACoef[NCoef+1] = {
         0.03356837051492005100,
         0.06713674102984010200,
         0.03356837051492005100
@@ -144,9 +144,9 @@ static __inline float sb_iir(int i, float NewSample) {
         1.00000000000000000000,
         -1.41898265221812010000,
         0.55326988968868285000
-    };*/
+    };
     
-    float ACoef[NCoef+1] = {
+/*    float ACoef[NCoef+1] = {
         0.17529642630084405000,
         0.17529642630084405000
     };
@@ -154,7 +154,8 @@ static __inline float sb_iir(int i, float NewSample) {
     float BCoef[NCoef+1] = {
         1.00000000000000000000,
         -0.64940759319751051000
-    };
+    };*/
+
     static float y[2][NCoef+1]; /* output samples */
     static float x[2][NCoef+1]; /* input samples */
     int n;