diff --git a/sdrbase/dsp/decimators.h b/sdrbase/dsp/decimators.h
index f6b204708..e94448b6c 100644
--- a/sdrbase/dsp/decimators.h
+++ b/sdrbase/dsp/decimators.h
@@ -524,38 +524,6 @@ void Decimators<StorageType, T, SdrBits, InputBits>::decimate2_sup(SampleVector:
     }
 }
 
-template<typename StorageType, typename T, uint SdrBits, uint InputBits>
-void Decimators<StorageType, T, SdrBits, InputBits>::decimate2_cen(SampleVector::iterator* it, const T* buf, qint32 len)
-{
-    StorageType xreal[2], yimag[2];
-
-    for (int pos = 0; pos < len - 7; pos += 8)
-    {
-        xreal[0]  = buf[pos+2] << decimation_shifts<SdrBits, InputBits>::pre2;
-        yimag[0]  = buf[pos+3] << decimation_shifts<SdrBits, InputBits>::pre2;
-        xreal[1]  = buf[pos+6] << decimation_shifts<SdrBits, InputBits>::pre2;
-        yimag[1]  = buf[pos+7] << decimation_shifts<SdrBits, InputBits>::pre2;
-
-        m_decimator2.myDecimateCen(
-                buf[pos+0] << decimation_shifts<SdrBits, InputBits>::pre2,
-                buf[pos+1] << decimation_shifts<SdrBits, InputBits>::pre2,
-                &xreal[0],
-                &yimag[0],
-                buf[pos+4] << decimation_shifts<SdrBits, InputBits>::pre2,
-                buf[pos+5] << decimation_shifts<SdrBits, InputBits>::pre2,
-                &xreal[1],
-                &yimag[1]);
-
-        (**it).setReal(xreal[0] >> decimation_shifts<SdrBits, InputBits>::post2);
-        (**it).setImag(yimag[0] >> decimation_shifts<SdrBits, InputBits>::post2);
-        ++(*it);
-
-        (**it).setReal(xreal[1] >> decimation_shifts<SdrBits, InputBits>::post2);
-        (**it).setImag(yimag[1] >> decimation_shifts<SdrBits, InputBits>::post2);
-        ++(*it);
-    }
-}
-
 // No filtering: bad for Rx OK for signal tracking
 //template<typename StorageType, typename T, uint SdrBits, uint InputBits>
 //void Decimators<StorageType, T, SdrBits, InputBits>::decimate2_sup(SampleVector::iterator* it, const T* buf, qint32 len)
@@ -1654,79 +1622,492 @@ void Decimators<StorageType, T, SdrBits, InputBits>::decimate32_sup(SampleVector
 template<typename StorageType, typename T, uint SdrBits, uint InputBits>
 void Decimators<StorageType, T, SdrBits, InputBits>::decimate64_inf(SampleVector::iterator* it, const T* buf, qint32 len)
 {
-	StorageType xreal[16], yimag[16];
+    StorageType buf2[128], buf4[64], buf8[32], buf16[16], buf32[8], buf64[4];
 
-	for (int pos = 0; pos < len - 127; )
-	{
-		for (int i = 0; i < 16; i++)
-		{
-			xreal[i] = (buf[pos+0] - buf[pos+3] + buf[pos+7] - buf[pos+4]) << decimation_shifts<SdrBits, InputBits>::pre64;
-			yimag[i] = (buf[pos+1] - buf[pos+5] + buf[pos+2] - buf[pos+6]) << decimation_shifts<SdrBits, InputBits>::pre64;
-			pos += 8;
-		}
-
-		m_decimator2.myDecimate(xreal[0], yimag[0], &xreal[1], &yimag[1]);
-		m_decimator2.myDecimate(xreal[2], yimag[2], &xreal[3], &yimag[3]);
-		m_decimator2.myDecimate(xreal[4], yimag[4], &xreal[5], &yimag[5]);
-		m_decimator2.myDecimate(xreal[6], yimag[6], &xreal[7], &yimag[7]);
-		m_decimator2.myDecimate(xreal[8], yimag[8], &xreal[9], &yimag[9]);
-		m_decimator2.myDecimate(xreal[10], yimag[10], &xreal[11], &yimag[11]);
-		m_decimator2.myDecimate(xreal[12], yimag[12], &xreal[13], &yimag[13]);
-		m_decimator2.myDecimate(xreal[14], yimag[14], &xreal[15], &yimag[15]);
-
-		m_decimator4.myDecimate(xreal[1], yimag[1], &xreal[3], &yimag[3]);
-		m_decimator4.myDecimate(xreal[5], yimag[5], &xreal[7], &yimag[7]);
-		m_decimator4.myDecimate(xreal[9], yimag[9], &xreal[11], &yimag[11]);
-		m_decimator4.myDecimate(xreal[13], yimag[13], &xreal[15], &yimag[15]);
-
-		m_decimator8.myDecimate(xreal[3], yimag[3], &xreal[7], &yimag[7]);
-		m_decimator8.myDecimate(xreal[11], yimag[11], &xreal[15], &yimag[15]);
-
-		m_decimator16.myDecimate(xreal[7], yimag[7], &xreal[15], &yimag[15]);
-
-		(**it).setReal(xreal[15] >> decimation_shifts<SdrBits, InputBits>::post64);
-		(**it).setImag(yimag[15] >> decimation_shifts<SdrBits, InputBits>::post64);
-
-		++(*it);
-	}
-}
-
-template<typename StorageType, typename T, uint SdrBits, uint InputBits>
-void Decimators<StorageType, T, SdrBits, InputBits>::decimate64_inf(SampleVector::iterator* it, const T* bufI, const T* bufQ, qint32 len)
-{
-    StorageType xreal[16], yimag[16];
-
-    for (int pos = 0; pos < len - 63; )
+    for (int pos = 0; pos < len - 255; pos += 256)
     {
-        for (int i = 0; i < 16; i++)
-        {
-            xreal[i] = (bufI[pos+0] - bufQ[pos+1] + bufQ[pos+3] - bufI[pos+2]) << decimation_shifts<SdrBits, InputBits>::pre64;
-            yimag[i] = (bufQ[pos+0] - bufQ[pos+2] + bufI[pos+1] - bufI[pos+3]) << decimation_shifts<SdrBits, InputBits>::pre64;
-            pos += 4;
-        }
+        m_decimator2.myDecimateInf(
+                buf[pos+0] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+1] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+2] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+3] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+4] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+5] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+6] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+7] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[0]);
 
-        m_decimator2.myDecimate(xreal[0], yimag[0], &xreal[1], &yimag[1]);
-        m_decimator2.myDecimate(xreal[2], yimag[2], &xreal[3], &yimag[3]);
-        m_decimator2.myDecimate(xreal[4], yimag[4], &xreal[5], &yimag[5]);
-        m_decimator2.myDecimate(xreal[6], yimag[6], &xreal[7], &yimag[7]);
-        m_decimator2.myDecimate(xreal[8], yimag[8], &xreal[9], &yimag[9]);
-        m_decimator2.myDecimate(xreal[10], yimag[10], &xreal[11], &yimag[11]);
-        m_decimator2.myDecimate(xreal[12], yimag[12], &xreal[13], &yimag[13]);
-        m_decimator2.myDecimate(xreal[14], yimag[14], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateInf(
+                buf[pos+8] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+9] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+10] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+11] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+12] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+13] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+14] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+15] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[4]);
 
-        m_decimator4.myDecimate(xreal[1], yimag[1], &xreal[3], &yimag[3]);
-        m_decimator4.myDecimate(xreal[5], yimag[5], &xreal[7], &yimag[7]);
-        m_decimator4.myDecimate(xreal[9], yimag[9], &xreal[11], &yimag[11]);
-        m_decimator4.myDecimate(xreal[13], yimag[13], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateInf(
+                buf[pos+16] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+17] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+18] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+19] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+20] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+21] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+22] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+23] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[8]);
 
-        m_decimator8.myDecimate(xreal[3], yimag[3], &xreal[7], &yimag[7]);
-        m_decimator8.myDecimate(xreal[11], yimag[11], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateInf(
+                buf[pos+24] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+25] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+26] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+27] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+28] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+29] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+30] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+31] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[12]);
 
-        m_decimator16.myDecimate(xreal[7], yimag[7], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateInf(
+                buf[pos+32] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+33] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+34] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+35] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+36] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+37] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+38] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+39] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[16]);
 
-        (**it).setReal(xreal[15] >> decimation_shifts<SdrBits, InputBits>::post64);
-        (**it).setImag(yimag[15] >> decimation_shifts<SdrBits, InputBits>::post64);
+        m_decimator2.myDecimateInf(
+                buf[pos+40] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+41] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+42] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+43] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+44] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+45] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+46] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+47] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[20]);
 
+        m_decimator2.myDecimateInf(
+                buf[pos+48] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+49] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+50] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+51] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+52] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+53] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+54] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+55] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[24]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+56] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+57] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+58] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+59] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+60] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+61] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+62] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+63] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[28]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+64] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+65] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+66] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+67] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+68] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+69] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+70] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+71] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[32]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+72] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+73] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+74] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+75] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+76] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+77] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+78] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+79] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[36]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+80] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+81] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+82] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+83] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+84] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+85] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+86] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+87] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[40]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+88] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+89] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+90] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+91] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+92] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+93] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+94] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+95] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[44]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+96] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+97] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+98] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+99] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+100] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+101] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+102] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+103] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[48]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+104] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+105] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+106] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+107] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+108] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+109] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+110] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+111] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[52]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+112] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+113] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+114] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+115] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+116] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+117] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+118] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+119] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[56]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+120] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+121] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+122] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+123] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+124] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+125] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+126] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+127] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[60]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+128] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+129] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+130] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+131] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+132] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+133] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+134] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+135] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[64]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+136] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+137] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+138] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+139] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+140] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+141] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+142] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+143] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[68]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+144] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+145] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+146] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+147] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+148] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+149] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+150] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+151] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[72]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+152] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+153] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+154] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+155] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+156] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+157] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+158] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+159] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[76]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+160] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+161] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+162] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+163] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+164] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+165] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+166] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+167] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[80]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+168] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+169] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+170] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+171] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+172] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+173] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+174] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+175] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[84]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+176] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+177] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+178] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+179] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+180] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+181] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+182] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+183] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[88]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+184] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+185] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+186] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+187] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+188] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+189] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+190] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+191] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[92]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+192] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+193] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+194] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+195] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+196] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+197] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+198] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+199] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[96]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+200] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+201] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+202] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+203] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+204] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+205] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+206] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+207] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[100]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+208] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+209] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+210] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+211] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+212] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+213] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+214] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+215] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[104]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+216] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+217] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+218] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+219] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+220] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+221] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+222] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+223] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[108]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+224] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+225] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+226] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+227] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+228] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+229] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+230] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+231] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[112]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+232] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+233] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+234] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+235] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+236] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+237] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+238] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+239] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[116]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+240] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+241] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+242] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+243] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+244] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+245] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+246] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+247] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[120]);
+
+        m_decimator2.myDecimateInf(
+                buf[pos+248] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+249] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+250] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+251] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+252] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+253] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+254] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+255] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[124]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[0],
+                &buf4[0]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[8],
+                &buf4[4]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[16],
+                &buf4[8]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[24],
+                &buf4[12]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[32],
+                &buf4[16]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[40],
+                &buf4[20]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[48],
+                &buf4[24]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[56],
+                &buf4[28]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[64],
+                &buf4[32]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[72],
+                &buf4[36]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[80],
+                &buf4[40]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[88],
+                &buf4[44]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[96],
+                &buf4[48]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[104],
+                &buf4[52]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[112],
+                &buf4[56]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[120],
+                &buf4[60]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[0],
+                &buf8[0]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[8],
+                &buf8[4]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[16],
+                &buf8[8]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[24],
+                &buf8[12]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[32],
+                &buf8[16]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[40],
+                &buf8[20]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[48],
+                &buf8[24]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[56],
+                &buf8[28]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[0],
+                &buf16[0]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[8],
+                &buf16[4]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[16],
+                &buf16[8]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[24],
+                &buf16[12]);
+
+        m_decimator32.myDecimateCen(
+                &buf16[0],
+                &buf32[0]);
+
+        m_decimator32.myDecimateCen(
+                &buf16[8],
+                &buf32[4]);
+
+        m_decimator64.myDecimateCen(
+                &buf32[0],
+                &buf64[0]);
+
+        (**it).setReal(buf64[0] >> decimation_shifts<SdrBits, InputBits>::post64);
+        (**it).setImag(buf64[1] >> decimation_shifts<SdrBits, InputBits>::post64);
+        ++(*it);
+
+        (**it).setReal(buf64[2] >> decimation_shifts<SdrBits, InputBits>::post64);
+        (**it).setImag(buf64[3] >> decimation_shifts<SdrBits, InputBits>::post64);
         ++(*it);
     }
 }
@@ -1734,79 +2115,492 @@ void Decimators<StorageType, T, SdrBits, InputBits>::decimate64_inf(SampleVector
 template<typename StorageType, typename T, uint SdrBits, uint InputBits>
 void Decimators<StorageType, T, SdrBits, InputBits>::decimate64_sup(SampleVector::iterator* it, const T* buf, qint32 len)
 {
-	StorageType xreal[16], yimag[16];
+    StorageType buf2[128], buf4[64], buf8[32], buf16[16], buf32[8], buf64[4];
 
-	for (int pos = 0; pos < len - 127; )
-	{
-		for (int i = 0; i < 16; i++)
-		{
-			xreal[i] = (buf[pos+1] - buf[pos+2] - buf[pos+5] + buf[pos+6]) << decimation_shifts<SdrBits, InputBits>::pre32;
-			yimag[i] = (buf[pos+4] + buf[pos+7] - buf[pos+0] - buf[pos+3]) << decimation_shifts<SdrBits, InputBits>::pre32;
-			pos += 8;
-		}
-
-		m_decimator2.myDecimate(xreal[0], yimag[0], &xreal[1], &yimag[1]);
-		m_decimator2.myDecimate(xreal[2], yimag[2], &xreal[3], &yimag[3]);
-		m_decimator2.myDecimate(xreal[4], yimag[4], &xreal[5], &yimag[5]);
-		m_decimator2.myDecimate(xreal[6], yimag[6], &xreal[7], &yimag[7]);
-		m_decimator2.myDecimate(xreal[8], yimag[8], &xreal[9], &yimag[9]);
-		m_decimator2.myDecimate(xreal[10], yimag[10], &xreal[11], &yimag[11]);
-		m_decimator2.myDecimate(xreal[12], yimag[12], &xreal[13], &yimag[13]);
-		m_decimator2.myDecimate(xreal[14], yimag[14], &xreal[15], &yimag[15]);
-
-		m_decimator4.myDecimate(xreal[1], yimag[1], &xreal[3], &yimag[3]);
-		m_decimator4.myDecimate(xreal[5], yimag[5], &xreal[7], &yimag[7]);
-		m_decimator4.myDecimate(xreal[9], yimag[9], &xreal[11], &yimag[11]);
-		m_decimator4.myDecimate(xreal[13], yimag[13], &xreal[15], &yimag[15]);
-
-		m_decimator8.myDecimate(xreal[3], yimag[3], &xreal[7], &yimag[7]);
-		m_decimator8.myDecimate(xreal[11], yimag[11], &xreal[15], &yimag[15]);
-
-		m_decimator16.myDecimate(xreal[7], yimag[7], &xreal[15], &yimag[15]);
-
-		(**it).setReal(xreal[15] >> decimation_shifts<SdrBits, InputBits>::post64);
-		(**it).setImag(yimag[15] >> decimation_shifts<SdrBits, InputBits>::post64);
-
-		++(*it);
-	}
-}
-
-template<typename StorageType, typename T, uint SdrBits, uint InputBits>
-void Decimators<StorageType, T, SdrBits, InputBits>::decimate64_sup(SampleVector::iterator* it, const T* bufI, const T* bufQ, qint32 len)
-{
-    StorageType xreal[16], yimag[16];
-
-    for (int pos = 0; pos < len - 63; )
+    for (int pos = 0; pos < len - 255; pos += 256)
     {
-        for (int i = 0; i < 16; i++)
-        {
-            xreal[i] = (bufQ[pos+0] - bufI[pos+1] - bufQ[pos+2] + bufI[pos+3]) << decimation_shifts<SdrBits, InputBits>::pre32;
-            yimag[i] = (bufI[pos+2] + bufQ[pos+3] - bufI[pos+0] - bufQ[pos+1]) << decimation_shifts<SdrBits, InputBits>::pre32;
-            pos += 4;
-        }
+        m_decimator2.myDecimateSup(
+                buf[pos+0] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+1] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+2] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+3] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+4] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+5] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+6] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+7] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[0]);
 
-        m_decimator2.myDecimate(xreal[0], yimag[0], &xreal[1], &yimag[1]);
-        m_decimator2.myDecimate(xreal[2], yimag[2], &xreal[3], &yimag[3]);
-        m_decimator2.myDecimate(xreal[4], yimag[4], &xreal[5], &yimag[5]);
-        m_decimator2.myDecimate(xreal[6], yimag[6], &xreal[7], &yimag[7]);
-        m_decimator2.myDecimate(xreal[8], yimag[8], &xreal[9], &yimag[9]);
-        m_decimator2.myDecimate(xreal[10], yimag[10], &xreal[11], &yimag[11]);
-        m_decimator2.myDecimate(xreal[12], yimag[12], &xreal[13], &yimag[13]);
-        m_decimator2.myDecimate(xreal[14], yimag[14], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateSup(
+                buf[pos+8] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+9] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+10] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+11] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+12] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+13] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+14] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+15] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[4]);
 
-        m_decimator4.myDecimate(xreal[1], yimag[1], &xreal[3], &yimag[3]);
-        m_decimator4.myDecimate(xreal[5], yimag[5], &xreal[7], &yimag[7]);
-        m_decimator4.myDecimate(xreal[9], yimag[9], &xreal[11], &yimag[11]);
-        m_decimator4.myDecimate(xreal[13], yimag[13], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateSup(
+                buf[pos+16] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+17] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+18] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+19] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+20] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+21] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+22] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+23] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[8]);
 
-        m_decimator8.myDecimate(xreal[3], yimag[3], &xreal[7], &yimag[7]);
-        m_decimator8.myDecimate(xreal[11], yimag[11], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateSup(
+                buf[pos+24] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+25] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+26] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+27] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+28] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+29] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+30] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+31] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[12]);
 
-        m_decimator16.myDecimate(xreal[7], yimag[7], &xreal[15], &yimag[15]);
+        m_decimator2.myDecimateSup(
+                buf[pos+32] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+33] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+34] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+35] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+36] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+37] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+38] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+39] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[16]);
 
-        (**it).setReal(xreal[15] >> decimation_shifts<SdrBits, InputBits>::post64);
-        (**it).setImag(yimag[15] >> decimation_shifts<SdrBits, InputBits>::post64);
+        m_decimator2.myDecimateSup(
+                buf[pos+40] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+41] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+42] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+43] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+44] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+45] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+46] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+47] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[20]);
 
+        m_decimator2.myDecimateSup(
+                buf[pos+48] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+49] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+50] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+51] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+52] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+53] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+54] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+55] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[24]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+56] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+57] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+58] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+59] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+60] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+61] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+62] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+63] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[28]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+64] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+65] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+66] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+67] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+68] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+69] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+70] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+71] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[32]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+72] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+73] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+74] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+75] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+76] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+77] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+78] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+79] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[36]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+80] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+81] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+82] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+83] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+84] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+85] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+86] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+87] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[40]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+88] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+89] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+90] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+91] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+92] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+93] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+94] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+95] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[44]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+96] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+97] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+98] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+99] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+100] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+101] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+102] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+103] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[48]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+104] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+105] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+106] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+107] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+108] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+109] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+110] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+111] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[52]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+112] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+113] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+114] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+115] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+116] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+117] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+118] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+119] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[56]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+120] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+121] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+122] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+123] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+124] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+125] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+126] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+127] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[60]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+128] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+129] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+130] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+131] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+132] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+133] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+134] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+135] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[64]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+136] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+137] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+138] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+139] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+140] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+141] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+142] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+143] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[68]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+144] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+145] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+146] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+147] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+148] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+149] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+150] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+151] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[72]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+152] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+153] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+154] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+155] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+156] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+157] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+158] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+159] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[76]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+160] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+161] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+162] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+163] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+164] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+165] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+166] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+167] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[80]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+168] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+169] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+170] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+171] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+172] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+173] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+174] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+175] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[84]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+176] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+177] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+178] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+179] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+180] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+181] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+182] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+183] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[88]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+184] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+185] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+186] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+187] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+188] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+189] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+190] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+191] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[92]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+192] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+193] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+194] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+195] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+196] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+197] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+198] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+199] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[96]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+200] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+201] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+202] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+203] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+204] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+205] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+206] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+207] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[100]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+208] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+209] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+210] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+211] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+212] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+213] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+214] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+215] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[104]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+216] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+217] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+218] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+219] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+220] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+221] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+222] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+223] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[108]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+224] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+225] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+226] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+227] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+228] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+229] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+230] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+231] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[112]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+232] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+233] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+234] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+235] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+236] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+237] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+238] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+239] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[116]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+240] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+241] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+242] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+243] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+244] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+245] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+246] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+247] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[120]);
+
+        m_decimator2.myDecimateSup(
+                buf[pos+248] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+249] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+250] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+251] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+252] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+253] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+254] << decimation_shifts<SdrBits, InputBits>::pre64,
+                buf[pos+255] << decimation_shifts<SdrBits, InputBits>::pre64,
+                &buf2[124]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[0],
+                &buf4[0]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[8],
+                &buf4[4]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[16],
+                &buf4[8]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[24],
+                &buf4[12]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[32],
+                &buf4[16]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[40],
+                &buf4[20]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[48],
+                &buf4[24]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[56],
+                &buf4[28]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[64],
+                &buf4[32]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[72],
+                &buf4[36]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[80],
+                &buf4[40]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[88],
+                &buf4[44]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[96],
+                &buf4[48]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[104],
+                &buf4[52]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[112],
+                &buf4[56]);
+
+        m_decimator4.myDecimateCen(
+                &buf2[120],
+                &buf4[60]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[0],
+                &buf8[0]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[8],
+                &buf8[4]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[16],
+                &buf8[8]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[24],
+                &buf8[12]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[32],
+                &buf8[16]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[40],
+                &buf8[20]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[48],
+                &buf8[24]);
+
+        m_decimator8.myDecimateCen(
+                &buf4[56],
+                &buf8[28]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[0],
+                &buf16[0]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[8],
+                &buf16[4]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[16],
+                &buf16[8]);
+
+        m_decimator16.myDecimateCen(
+                &buf8[24],
+                &buf16[12]);
+
+        m_decimator32.myDecimateCen(
+                &buf16[0],
+                &buf32[0]);
+
+        m_decimator32.myDecimateCen(
+                &buf16[8],
+                &buf32[4]);
+
+        m_decimator64.myDecimateCen(
+                &buf32[0],
+                &buf64[0]);
+
+        (**it).setReal(buf64[0] >> decimation_shifts<SdrBits, InputBits>::post64);
+        (**it).setImag(buf64[1] >> decimation_shifts<SdrBits, InputBits>::post64);
+        ++(*it);
+
+        (**it).setReal(buf64[2] >> decimation_shifts<SdrBits, InputBits>::post64);
+        (**it).setImag(buf64[3] >> decimation_shifts<SdrBits, InputBits>::post64);
         ++(*it);
     }
 }
@@ -1834,6 +2628,38 @@ void Decimators<StorageType, T, SdrBits, InputBits>::decimate64_sup(SampleVector
 //	}
 //}
 
+template<typename StorageType, typename T, uint SdrBits, uint InputBits>
+void Decimators<StorageType, T, SdrBits, InputBits>::decimate2_cen(SampleVector::iterator* it, const T* buf, qint32 len)
+{
+    StorageType xreal[2], yimag[2];
+
+    for (int pos = 0; pos < len - 7; pos += 8)
+    {
+        xreal[0]  = buf[pos+2] << decimation_shifts<SdrBits, InputBits>::pre2;
+        yimag[0]  = buf[pos+3] << decimation_shifts<SdrBits, InputBits>::pre2;
+        xreal[1]  = buf[pos+6] << decimation_shifts<SdrBits, InputBits>::pre2;
+        yimag[1]  = buf[pos+7] << decimation_shifts<SdrBits, InputBits>::pre2;
+
+        m_decimator2.myDecimateCen(
+                buf[pos+0] << decimation_shifts<SdrBits, InputBits>::pre2,
+                buf[pos+1] << decimation_shifts<SdrBits, InputBits>::pre2,
+                &xreal[0],
+                &yimag[0],
+                buf[pos+4] << decimation_shifts<SdrBits, InputBits>::pre2,
+                buf[pos+5] << decimation_shifts<SdrBits, InputBits>::pre2,
+                &xreal[1],
+                &yimag[1]);
+
+        (**it).setReal(xreal[0] >> decimation_shifts<SdrBits, InputBits>::post2);
+        (**it).setImag(yimag[0] >> decimation_shifts<SdrBits, InputBits>::post2);
+        ++(*it);
+
+        (**it).setReal(xreal[1] >> decimation_shifts<SdrBits, InputBits>::post2);
+        (**it).setImag(yimag[1] >> decimation_shifts<SdrBits, InputBits>::post2);
+        ++(*it);
+    }
+}
+
 template<typename StorageType, typename T, uint SdrBits, uint InputBits>
 void Decimators<StorageType, T, SdrBits, InputBits>::decimate2_cen(SampleVector::iterator* it, const T* bufI, const T* bufQ, qint32 len)
 {