Update speech2device.js

fix for issue #299

lib/speech2device.js

@@ -282,8 +282,8 @@ class Speech2Device {
                     count++;
 					// We are checking every 500 ms, expected length of playback is defined in variable duration in seconds
 					// Thus, we have to count to duration*2 to be able to wait long enough for the expected playback duration.
-					// We add an additional second, to cover delays before the playback starts.
-                    if (count > (duration+1)*2) {
+					// We add two additional seconds, to cover delays before the playback starts.
+                    if (count > (duration+2)*2) {
                         clearInterval(intervalHandler);
                         intervalHandler = null;
                         this.adapter.log.error(`Error while checking if ${chromecastAnnouncementDev} finished playing announcement: ${announcementJSON}: TIMEOUT`);