2 files changed, 22 insertions, 3 deletions
diff --git a/src/sndobj/FFT.cpp b/src/sndobj/FFT.cpp
index 666fe88..d527ea5 100644
--- a/src/sndobj/FFT.cpp
+++ b/src/sndobj/FFT.cpp
@@ -108,8 +108,20 @@ FFT::~FFT(){
   fftw_destroy_plan(m_plan);
   fftw_free(m_fftIn);
   fftw_free(m_fftOut);
-  delete[] m_counter;
-  delete[] m_sigframe;
+  if(m_counter){
+      delete[] m_counter;
+      m_counter = NULL;
+  }
+  for(int i = 0; i < m_frames; i++){
+      if(m_sigframe[i]){
+          delete[] m_sigframe[i];
+          m_sigframe[i] = NULL;
+      }
+  }
+  if(m_sigframe){
+      delete[] m_sigframe;
+      m_sigframe = NULL;
+  }
 }
 
 void
diff --git a/src/sndobj/IFGram.cpp b/src/sndobj/IFGram.cpp
index a5b374d..fb4cfa7 100644
--- a/src/sndobj/IFGram.cpp
+++ b/src/sndobj/IFGram.cpp
@@ -60,7 +60,14 @@ IFGram::IFGram(Table* window, SndObj* input, double scale,
 }
 
 IFGram::~IFGram(){
-  delete[] m_diffwin;
+  if(m_diffwin){
+      delete[] m_diffwin;
+      m_diffwin = NULL;
+  }
+  if(m_pdiff){
+      delete[] m_pdiff;
+      m_pdiff = NULL;
+  }
 
   fftw_destroy_plan(m_diffplan);
   fftw_free(m_diffsig);