diff --git a/test.sh b/test.sh
index ec3917a..6a5eae7 100755
--- a/test.sh
+++ b/test.sh
@@ -2,30 +2,48 @@
 set -u
 set -e
 
-# generate 1Mbit of random data
-dd if=/dev/urandom of=data.send bs=125kB count=1 status=none
+run() {
+	echo "SRC $HOST: $CMD" 1>&2
+	ssh $HOST $CMD
+}
+
+run_src() {
+	CMD="cd ~/Code/modem; $*"
+	HOST="roman@localhost"
+	run
+}
+
+run_dst() {
+	CMD="cd ~/Code/modem; $*"
+	HOST="roman@127.0.0.1"
+	run
+}
+
+## generate 1Mbit of random data
+#run_src dd if=/dev/urandom of=data.send bs=125kB count=1 status=none
+SRC_HASH=`run_src sha256sum data.send | ./colorhash.py`
 
 # modulate data into audio file
-./send.py <data.send >tx.int16
+run_src "./send.py <data.send >tx.int16"
 
 # stop old recording and start a new one
-killall -q arecord aplay || true
-./wave.py record rx.int16 &
+run_src killall -q aplay || true
+run_dst killall -q arecord || true
+
+run_dst "./wave.py record rx.int16" &
 sleep 1  # let rx.int16 be filled
 
 # start the receiever
-./recv.py <rx.int16 >data.recv &
+run_dst "./recv.py <rx.int16 >data.recv" &
 
 # play the modulated data
-./wave.py play   tx.int16
+run_src ./wave.py play   tx.int16
 
 # stop recording after playing is over
-killall -q arecord aplay || true
+run_src killall -q aplay || true
+run_dst killall -q arecord || true
 
 # verify transmittion
-./errors.py data.*
-sha256sum data.* | ./colorhash.py
-if [ -z $? ]; then
-	./show.py tx.int16 rx.int16
-fi
+DST_HASH=`run_dst sha256sum data.recv | ./colorhash.py`
 
+echo -e "$SRC_HASH\n$DST_HASH"
\ No newline at end of file