Use a 12dB/oct rolloff instead of 24 for the lowpass filter

1 files changed, 10 insertions, 14 deletions

diff --git a/Alc/ALu.c b/Alc/ALu.c
index 61e11bbf..37d30851 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -157,7 +157,6 @@ __inline ALuint aluChannelsFromFormat(ALenum format)
 
 static __inline ALfloat lpFilter(FILTER *iir, ALfloat input)
 {
-    unsigned int i;
     float *hist1_ptr,*hist2_ptr,*coef_ptr;
     ALfloat output,new_hist,history1,history2;
 
@@ -170,22 +169,19 @@ static __inline ALfloat lpFilter(FILTER *iir, ALfloat input)
      * or filter gain */
     output = input * (*coef_ptr++);
 
-    for(i = 0;i < FILTER_SECTIONS;i++)
-    {
-        history1 = *hist1_ptr;           /* history values */
-        history2 = *hist2_ptr;
+    history1 = *hist1_ptr;           /* history values */
+    history2 = *hist2_ptr;
 
-        output = output - history1 * (*coef_ptr++);
-        new_hist = output - history2 * (*coef_ptr++);    /* poles */
+    output = output - history1 * (*coef_ptr++);
+    new_hist = output - history2 * (*coef_ptr++);    /* poles */
 
-        output = new_hist + history1 * (*coef_ptr++);
-        output = output + history2 * (*coef_ptr++);      /* zeros */
+    output = new_hist + history1 * (*coef_ptr++);
+    output = output + history2 * (*coef_ptr++);      /* zeros */
 
-        *hist2_ptr++ = *hist1_ptr;
-        *hist1_ptr++ = new_hist;
-        hist1_ptr++;
-        hist2_ptr++;
-    }
+    *hist2_ptr++ = *hist1_ptr;
+    *hist1_ptr++ = new_hist;
+    hist1_ptr++;
+    hist2_ptr++;
 
     return output;
 }