From 9a57296b21a5bc8e1e2f554ce74e982e1ca1678e Mon Sep 17 00:00:00 2001
From: drowe67 <drowe67@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Thu, 18 Nov 2010 05:20:55 +0000
Subject: [PATCH] mods to handle LPC orders other than 10, they don't sound
 much better BTW

git-svn-id: https://svn.code.sf.net/p/freetel/code@242 01035d8c-6547-0410-b346-abe4f91aad63
---
 codec2/src/codec2.c | 2 +-
 codec2/src/phase.c  | 5 +++--
 codec2/src/phase.h  | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/codec2/src/codec2.c b/codec2/src/codec2.c
index 5d9c1be7..e67f3fba 100644
--- a/codec2/src/codec2.c
+++ b/codec2/src/codec2.c
@@ -313,7 +313,7 @@ void synthesise_one_frame(CODEC2 *c2, short speech[], MODEL *model, float ak[])
 {
     int     i;
 
-    phase_synth_zero_order(model, ak, &c2->ex_phase);
+    phase_synth_zero_order(model, ak, &c2->ex_phase, LPC_ORD);
     postfilter(model, &c2->bg_est);
     synthesise(c2->Sn_, model, c2->Pn, 1);
 
diff --git a/codec2/src/phase.c b/codec2/src/phase.c
index 4a1cade2..80dfaa25 100644
--- a/codec2/src/phase.c
+++ b/codec2/src/phase.c
@@ -190,7 +190,8 @@ void aks_to_H(
 void phase_synth_zero_order(
     MODEL *model,
     float  aks[],
-    float *ex_phase             /* excitation phase of fundamental */
+    float *ex_phase,            /* excitation phase of fundamental */
+    int    order
 )
 {
   int   m;
@@ -204,7 +205,7 @@ void phase_synth_zero_order(
   int   b;
 
   G = 1.0;
-  aks_to_H(model,aks,G,H,LPC_ORD);
+  aks_to_H(model, aks, G, H, order);
 
   /* 
      Update excitation fundamental phase track, this sets the position
diff --git a/codec2/src/phase.h b/codec2/src/phase.h
index 33483208..833bc7cd 100644
--- a/codec2/src/phase.h
+++ b/codec2/src/phase.h
@@ -28,6 +28,7 @@
 #ifndef __PHASE__
 #define __PHASE__
 
-void phase_synth_zero_order(MODEL *model, float aks[], float *ex_phase);
+void phase_synth_zero_order(MODEL *model, float aks[], float *ex_phase, 
+			    int order);
 
 #endif
-- 
2.25.1