--- formats/format_g729.c	(Asterisk 11.20)
+++ formats/format_g729.c	(working copy)
@@ -45,2 +45,2 @@
-#define	BUF_SIZE	20	/* two G729 frames */
-#define	G729A_SAMPLES	160
+#define	BUF_SIZE	10	/* one G729 frame */
+#define	G729A_SAMPLES	80
--- formats/format_pcm.c	(Asterisk 11.20)
+++ formats/format_pcm.c	(working copy)
@@ -41 +41 @@
-#define BUF_SIZE 160		/* 160 bytes, and same number of samples */
+#define BUF_SIZE 80		/* 80 bytes, and same number of samples */
--- formats/format_wav.c	(Asterisk 11.20)
+++ formats/format_wav.c	(working copy)
@@ -43 +43 @@
-#define	WAV_BUF_SIZE	320
+#define	WAV_BUF_SIZE	160
--- formats/format_sln.c	(Asterisk 11.20)
+++ formats/format_sln.c	(working copy)
@@ -131 +131 @@
-static struct ast_frame *slinear_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 320, AST_FORMAT_SLINEAR);}
+static struct ast_frame *slinear_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 160, AST_FORMAT_SLINEAR);}
@@ -140 +140 @@
-	.buf_size = 320 + AST_FRIENDLY_OFFSET,
+	.buf_size = 160 + AST_FRIENDLY_OFFSET,
@@ -144 +144 @@
-static struct ast_frame *slinear12_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 480, AST_FORMAT_SLINEAR12);}
+static struct ast_frame *slinear12_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 240, AST_FORMAT_SLINEAR12);}
@@ -153 +153 @@
-	.buf_size = 480 + AST_FRIENDLY_OFFSET,
+	.buf_size = 240 + AST_FRIENDLY_OFFSET,
@@ -157 +157 @@
-static struct ast_frame *slinear16_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 640, AST_FORMAT_SLINEAR16);}
+static struct ast_frame *slinear16_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 320, AST_FORMAT_SLINEAR16);}
@@ -166 +166 @@
-	.buf_size = 640 + AST_FRIENDLY_OFFSET,
+	.buf_size = 320 + AST_FRIENDLY_OFFSET,
@@ -170 +170 @@
-static struct ast_frame *slinear24_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 960, AST_FORMAT_SLINEAR24);}
+static struct ast_frame *slinear24_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 480, AST_FORMAT_SLINEAR24);}
@@ -179 +179 @@
-	.buf_size = 960 + AST_FRIENDLY_OFFSET,
+	.buf_size = 480 + AST_FRIENDLY_OFFSET,
@@ -183 +183 @@
-static struct ast_frame *slinear32_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1280, AST_FORMAT_SLINEAR32);}
+static struct ast_frame *slinear32_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 640, AST_FORMAT_SLINEAR32);}
@@ -192 +192 @@
-	.buf_size = 1280 + AST_FRIENDLY_OFFSET,
+	.buf_size = 640 + AST_FRIENDLY_OFFSET,
@@ -196 +196 @@
-static struct ast_frame *slinear44_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1764, AST_FORMAT_SLINEAR44);}
+static struct ast_frame *slinear44_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 882, AST_FORMAT_SLINEAR44);}
@@ -205 +205 @@
-	.buf_size = 1764 + AST_FRIENDLY_OFFSET,
+	.buf_size = 882 + AST_FRIENDLY_OFFSET,
@@ -209 +209 @@
-static struct ast_frame *slinear48_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1920, AST_FORMAT_SLINEAR48);}
+static struct ast_frame *slinear48_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 960, AST_FORMAT_SLINEAR48);}
@@ -218 +218 @@
-	.buf_size = 1920 + AST_FRIENDLY_OFFSET,
+	.buf_size = 960 + AST_FRIENDLY_OFFSET,
@@ -222 +222 @@
-static struct ast_frame *slinear96_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 3840, AST_FORMAT_SLINEAR96);}
+static struct ast_frame *slinear96_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1920, AST_FORMAT_SLINEAR96);}
@@ -231 +231 @@
-	.buf_size = 3840 + AST_FRIENDLY_OFFSET,
+	.buf_size = 1920 + AST_FRIENDLY_OFFSET,
@@ -235 +235 @@
-static struct ast_frame *slinear192_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 7680, AST_FORMAT_SLINEAR192);}
+static struct ast_frame *slinear192_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 3840, AST_FORMAT_SLINEAR192);}
@@ -244 +244 @@
-	.buf_size = 7680 + AST_FRIENDLY_OFFSET,
+	.buf_size = 3840 + AST_FRIENDLY_OFFSET,