Index: apps/talk.c
===================================================================
--- apps/talk.c	(revision 15879)
+++ apps/talk.c	(working copy)
@@ -318,7 +318,10 @@
     }
     else if (p_silence != NULL             /* silence clip available */
              && p_lastclip != p_silence    /* previous clip wasn't silence */
-             && p_lastclip != p_thumbnail) /* ..or thumbnail */
+#if CONFIG_CODEC != SWCODEC
+             && p_lastclip != p_thumbnail /* ..or thumbnail */
+#endif
+        )
     {   /* add silence clip when queue runs empty playing a voice clip */
         queue[queue_write].buf = p_silence;
         queue[queue_write].len = silence_len;