set idle pattern to 255 instead of 0 to prevent clipping sound on short frames from...

diff --git a/src/switch_ivr_play_say.c b/src/switch_ivr_play_say.c
index c5b7a61000b7ca3c09b42ffe7847453fa9858610..fd2f1a98fb6bc34b75d5fef868a714303d51168b 100644 (file)
--- a/src/switch_ivr_play_say.c
+++ b/src/switch_ivr_play_say.c
@@ -1292,7 +1292,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
                                if (framelen > FILE_STARTSAMPLES) {
                                        framelen = FILE_STARTSAMPLES;
                                }
-                               memset(abuf, 0, framelen);
+                               memset(abuf, 255, framelen);
                                olen = ilen;
                                do_speed = 0;
                        } else if (fh->sp_audio_buffer && (eof || (switch_buffer_inuse(fh->sp_audio_buffer) > (switch_size_t) (framelen)))) {
@@ -1305,7 +1305,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
                                }
 
                                if (bread < framelen) {
-                                       memset(abuf + bread, 0, framelen - bread);
+                                       memset(abuf + bread, 255, framelen - bread);
                                }
 
                                olen = asis ? framelen : ilen;
@@ -1320,7 +1320,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
                                }
 
                                if (bread < framelen) {
-                                       memset(abuf + bread, 0, framelen - bread);
+                                       memset(abuf + bread, 255, framelen - bread);
                                }
 
                                olen = asis ? framelen : ilen;
@@ -1408,10 +1408,10 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
                                last_speed = fh->speed;
                                continue;
                        }
-
+                       
                        if (olen < llen) {
                                uint8_t *dp = (uint8_t *) write_frame.data;
-                               memset(dp + (int) olen, 0, (int) (llen - olen));
+                               memset(dp + (int) olen, 255, (int) (llen - olen));
                                olen = llen;
                        }
 
@@ -1476,7 +1476,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
                        }
 #endif
 #endif
-                       if (fh->vol) {
+                       if (!asis && fh->vol) {
                                switch_change_sln_volume(write_frame.data, write_frame.datalen / 2, fh->vol);
                        }