T-Echo Card audio support initial stages - codec2 attempts

2026-05-17 14:55:51 +02:00 · 2026-05-07 05:47:18 +10:00
parent 4b734f1bac
commit 708b96e0e8
109 changed files with 87144 additions and 24 deletions
@@ -0,0 +1,121 @@
+/* THIS IS A GENERATED FILE. Edit generate_codebook.c and its input */
+
+/*
+ * This intermediary file and the files that used to create it are under 
+ * The LGPL. See the file COPYING.
+ */
+
+#include "defines.h"
+
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel1.txt */
+static const float codes0[] = {
+  550,
+  600,
+  650,
+  700,
+  750,
+  800,
+  850,
+  900
+};
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel2.txt */
+static const float codes1[] = {
+  50,
+  100,
+  200,
+  300
+};
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel3.txt */
+static const float codes2[] = {
+  800,
+  850,
+  900,
+  950,
+  1000,
+  1050,
+  1100,
+  1150,
+  1200,
+  1250,
+  1300,
+  1350,
+  1400,
+  1450,
+  1500,
+  1650
+};
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel4.txt */
+static const float codes3[] = {
+  25,
+  50,
+  75,
+  100,
+  125,
+  150,
+  175,
+  250
+};
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel5.txt */
+static const float codes4[] = {
+  1350,
+  1400,
+  1450,
+  1500,
+  1550,
+  1600,
+  1650,
+  1700
+};
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel6.txt */
+static const float codes5[] = {
+  25,
+  50,
+  100,
+  150
+};
+
+const struct lsp_codebook mel_cb[] = {
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel1.txt */
+  {
+    1,
+    3,
+    8,
+    codes0
+  },
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel2.txt */
+  {
+    1,
+    2,
+    4,
+    codes1
+  },
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel3.txt */
+  {
+    1,
+    4,
+    16,
+    codes2
+  },
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel4.txt */
+  {
+    1,
+    3,
+    8,
+    codes3
+  },
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel5.txt */
+  {
+    1,
+    3,
+    8,
+    codes4
+  },
+  /* /Users/brandon/freetel-code/codec2/branches/0.6/src/codebook/mel6.txt */
+  {
+    1,
+    2,
+    4,
+    codes5
+  },
+  { 0, 0, 0, 0 }
+};