diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -40,3 +40,5 @@
 		fixed scale in pwelch
 		reflected changes in hmatrix exports
 
+0.1.2.3:
+		changes to reflect new hmatrix interface		
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,2 +1,10 @@
-Copyright A.V.H. McPhail 2010
-GPL license
+Copyright (c) 2010, A.V.H. McPhail
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+    * Neither the name of the author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/hsignal.cabal b/hsignal.cabal
--- a/hsignal.cabal
+++ b/hsignal.cabal
@@ -1,6 +1,6 @@
 Name:               hsignal
-Version:            0.1.2.2
-License:            GPL
+Version:            0.1.2.3
+License:            BSD3
 License-file:       LICENSE
 Author:             Vivian McPhail
 Maintainer:         haskell.vivian.mcphail <at> gmail <dot> com
@@ -14,6 +14,8 @@
      .
      When hmatrix is installed with -fvector, the vector type is Data.Vector.Storable
      from the vector package.
+     .
+     Feature requests, suggestions, and bug fixes welcome.
 Category:           Math
 tested-with:        GHC ==6.12.1
 
@@ -29,10 +31,10 @@
     Build-Depends:      base >= 3 && < 5,
                         mtl, 
                         array,
-                        bytestring, storable-complex, ghc-binary,
+                        bytestring, storable-complex, binary,
                         hmatrix >= 0.10.0,
-                        hmatrix-gsl-stats >= 0.1.2.1,
-                        hstatistics >= 0.2.0.8
+                        hmatrix-gsl-stats >= 0.1.2.4,
+                        hstatistics >= 0.2.2.3
 
     Extensions:         ForeignFunctionInterface
 
diff --git a/lib/Numeric/Signal/Internal.hs b/lib/Numeric/Signal/Internal.hs
--- a/lib/Numeric/Signal/Internal.hs
+++ b/lib/Numeric/Signal/Internal.hs
@@ -54,7 +54,7 @@
 -----------------------------------------------------------------------------
 
 instance Convolvable (Vector Double) where
-    convolve x y = fst $ fromComplex $ F.ifft $ (F.fft (complex x) * F.fft (complex y))
+    convolve x y = fst $ fromComplex $ F.ifft $ (F.fft (comp x) * F.fft (comp y))
 --    convolve = convolve_vector_double
 
 convolve_vector_double c a = unsafePerformIO $ do
@@ -96,7 +96,7 @@
 -- | Hilbert transform with original vector as real value, transformed as imaginary
 hilbert :: Vector Double -> Vector (Complex Double)
 hilbert v = unsafePerformIO $ do
-            let r = complex v
+            let r = comp v
             -- could use (comp v) to make a complex vector in haskell rather than C
             app1 signal_hilbert vec r "hilbert"
             return r
@@ -111,7 +111,7 @@
        -> Vector Double  -- ^ power density  
 pwelch w v = unsafePerformIO $ do
              let r = constant 0.0 ((w `div` 2) + 1)
-             app2 (signal_pwelch $ fromIntegral w) vec (complex v) vec r "pwelch"
+             app2 (signal_pwelch $ fromIntegral w) vec (comp v) vec r "pwelch"
              return r
 
 foreign import ccall "signal-aux.h pwelch" signal_pwelch :: CInt -> CInt -> PC -> CInt -> PD -> IO CInt
@@ -138,8 +138,8 @@
       -> Vector Double     -- ^ points (between 0 and 2*pi)
       -> Vector Double     -- ^ response
 freqz b a w = let k = max (dim b) (dim a)
-                  hb = polyEval (postpad b k) (exp (scale (0 :+ 1) ((complex w) :: Vector (Complex Double))))
-                  ha = polyEval (postpad a k) (exp (scale (0 :+ 1) ((complex w) :: Vector (Complex Double))))
+                  hb = polyEval (postpad b k) (exp (scale (0 :+ 1) ((comp w) :: Vector (Complex Double))))
+                  ha = polyEval (postpad a k) (exp (scale (0 :+ 1) ((comp w) :: Vector (Complex Double))))
               in complex_power (hb / ha)
 
 postpad v n = let d = dim v