- /* make sure we've caught up with disk i/o, since
- we're running faster than realtime c/o JACK.
- */
- _butler->wait_until_finished ();
+ if (!_realtime_export) {
+ /* make sure we've caught up with disk i/o, since
+ * we're running faster than realtime c/o JACK.
+ */
+ _butler->wait_until_finished ();
+ }