Small fixes for mec2 echo can from #6937

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@744 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 5 insertions, 3 deletions

diff --git a/mec2.h b/mec2.h
index c138d7f..b340622 100755
--- a/mec2.h
+++ b/mec2.h
@@ -163,6 +163,7 @@ static inline void init_cc(echo_can_state_t *ec, int N, int maxy, int maxu) {
   // reset the near-end speech detector
   //
   ec->s_tilde_i = 0;
+  ec->y_tilde_i = 0;
   ec->HCNTR_d = (int)0;
 
   // exit gracefully
@@ -239,9 +240,10 @@ static inline short echo_can_update(echo_can_state_t *ec, short iref, short isig
   
   /* compute the new convergence factor
   */
-  Py_i = (ec->Ly_i >> DEFAULT_SIGMA_LY_I) * (ec->Ly_i >> DEFAULT_SIGMA_LY_I);
-  Py_i >>= 15;
-  if (ec->HCNTR_d > 0) {
+  if (!ec->HCNTR_d) {
+  	Py_i = (ec->Ly_i >> DEFAULT_SIGMA_LY_I) * (ec->Ly_i >> DEFAULT_SIGMA_LY_I);
+  	Py_i >>= 15;
+  } else {
   	Py_i = (1 << 15);
   }