--- amidi.c.orig	2015-11-20 23:10:21.230502547 +0100
+++ amidi.c	2016-03-20 16:52:55.366066476 +0100
@@ -559,7 +559,7 @@
 			int i, length;
 			unsigned short revents;
 
-			err = poll(pfds, npfds, 200);
+			err = poll(pfds, npfds, 5);
 			if (stop || (err < 0 && errno == EINTR))
 				break;
 			if (err < 0) {
@@ -567,7 +567,7 @@
 				break;
 			}
 			if (err == 0) {
-				time += 200;
+				time += 5;
 				if (timeout && time >= timeout)
 					break;
 				continue;
@@ -589,7 +589,7 @@
 			}
 			length = 0;
 			for (i = 0; i < err; ++i)
-				if (!ignore_active_sensing || buf[i] != 0xfe)
+				if (!ignore_active_sensing || buf[i] < 0xf8)
 					buf[length++] = buf[i];
 			if (length == 0)
 				continue;