Tweaked AudioPCI resampling filter gain to reduce clipping.

src/sound_audiopci.c

@@ -1189,6 +1189,8 @@ static void generate_es1371_filter()
         for (n = 0; n < ES1371_NCoef; n++)
                 gain += low_fir_es1371_coef[n] / (float)N;
 
+        gain /= 0.95;
+        
         /*Normalise filter, to produce unity gain*/
         for (n = 0; n < ES1371_NCoef; n++)
                 low_fir_es1371_coef[n] /= gain;