diff --git a/input_tdm.cpp b/input_tdm.cpp
index 2b0032ff..c18a594b 100644
--- a/input_tdm.cpp
+++ b/input_tdm.cpp
@@ -124,8 +124,8 @@ static void memcpy_tdm_rx(uint32_t *dest1, uint32_t *dest2, const uint32_t *src)
 		in1 = *src;
 		in2 = *(src+8);
 		src += 16;
-		*dest1++ = (in1 >> 16) | (in2 & 0xFFFF0000);
-		*dest2++ = (in1 << 16) | (in2 & 0x0000FFFF);
+		*dest1++ = ((in1 >> 16) & 0x0000FFFF) | ((in2 <<  0) & 0xFFFF0000);
+		*dest2++ = ((in1 >>  0) & 0x0000FFFF) | ((in2 << 16) & 0xFFFF0000);		
 	}
 }
 
diff --git a/input_tdm2.cpp b/input_tdm2.cpp
index 46a0892a..93d6c59c 100644
--- a/input_tdm2.cpp
+++ b/input_tdm2.cpp
@@ -98,8 +98,8 @@ static void memcpy_tdm_rx(uint32_t *dest1, uint32_t *dest2, const uint32_t *src)
 		in1 = *src;
 		in2 = *(src+8);
 		src += 16;
-		*dest1++ = (in1 >> 16) | (in2 & 0xFFFF0000);
-		*dest2++ = (in1 << 16) | (in2 & 0x0000FFFF);
+		*dest1++ = ((in1 >> 16) & 0x0000FFFF) | ((in2 <<  0) & 0xFFFF0000);
+		*dest2++ = ((in1 >>  0) & 0x0000FFFF) | ((in2 << 16) & 0xFFFF0000);		
 	}
 }