diff -Naur speech-dispatcher-0.6.6/src/modules/espeak.c speech-dispatcher-0.6.6.keys/src/modules/espeak.c
--- speech-dispatcher-0.6.6/src/modules/espeak.c	2008-02-08 11:01:09.000000000 +0100
+++ speech-dispatcher-0.6.6.keys/src/modules/espeak.c	2008-03-20 06:35:41.732056400 +0100
@@ -471,7 +471,11 @@
 	case MSGTYPE_KEY:
 		{
 			/* TODO: Convert unspeakable keys to speakable form */
-			char *msg = g_strdup_printf("<say-as interpret-as=\"tts:key\">%s</say-as>", data);
+			char *msg, *d = data;
+			if (!strcmp(d,"space")) d="&#32;";
+			else if (!strcmp(d,"underscore")) d="_";
+			else if (!strcmp(d,"double-quote")) d="\"";
+			msg = g_strdup_printf("<say-as interpret-as=\"tts:key\">%s</say-as>", d);
 			result = espeak_Synth(msg, strlen(msg) + 1, 0, POS_CHARACTER, 0,
 								  flags, NULL, NULL);
 			g_free(msg);