diff --git a/test.sh b/test.sh
index 8a6d3d1..68e0772 100755
--- a/test.sh
+++ b/test.sh
@@ -2,7 +2,7 @@
 set -u 
 set -e 
 
-dd if=/dev/urandom of=data.send bs=128 count=1 status=none
+dd if=/dev/urandom of=data.send bs=1024 count=1 status=none
 ./send.py tx.int16
 
 killall arecord aplay || true