diff --git a/filter/ybandpass.h b/filter/ybandpass.h
index 9cb048f..27801fa 100644
--- a/filter/ybandpass.h
+++ b/filter/ybandpass.h
@@ -73,10 +73,10 @@ public:
     }
     void processblock(t_sample** inputs, t_sample** outputs, int blockSize)
     {
-        double* in1 = inputs[0];
-        double* in2 = inputs[1];
-        double* out1 = outputs[0];
-        double* out2 = outputs[1];
+        t_sample* in1 = inputs[0];
+        t_sample* in2 = inputs[1];
+        t_sample* out1 = outputs[0];
+        t_sample* out2 = outputs[1];
 
         int inFramesToProcess = blockSize;
         double overallscale = 1.0;
diff --git a/filter/yhighpass.h b/filter/yhighpass.h
index 1abb1e6..a5387c7 100644
--- a/filter/yhighpass.h
+++ b/filter/yhighpass.h
@@ -73,10 +73,10 @@ public:
     }
     void processblock(t_sample** inputs, t_sample** outputs, int blockSize)
     {
-        double* in1 = inputs[0];
-        double* in2 = inputs[1];
-        double* out1 = outputs[0];
-        double* out2 = outputs[1];
+        t_sample* in1 = inputs[0];
+        t_sample* in2 = inputs[1];
+        t_sample* out1 = outputs[0];
+        t_sample* out2 = outputs[1];
 
         int inFramesToProcess = blockSize;
         double overallscale = 1.0;
diff --git a/filter/ynotch.h b/filter/ynotch.h
index 23db0de..74584d3 100644
--- a/filter/ynotch.h
+++ b/filter/ynotch.h
@@ -73,10 +73,10 @@ public:
     }
     void processblock(t_sample** inputs, t_sample** outputs, int blockSize)
     {
-        double* in1 = inputs[0];
-        double* in2 = inputs[1];
-        double* out1 = outputs[0];
-        double* out2 = outputs[1];
+        t_sample* in1 = inputs[0];
+        t_sample* in2 = inputs[1];
+        t_sample* out1 = outputs[0];
+        t_sample* out2 = outputs[1];
 
         int inFramesToProcess = blockSize;
         double overallscale = 1.0;