diff --git a/send.py b/send.py
index fb30a4f..204a104 100755
--- a/send.py
+++ b/send.py
@@ -61,7 +61,8 @@ def main(fname):
 
         log.info('%d bits to be send', len(data)*8)
         bits = list(to_bits(ecc.encode(data)))
-        log.info('%d bits modulated (with ECC)', len(bits))
+        ecc_ratio = 1.0 - len(data)*8.0 / len(bits)
+        log.info('%d bits modulated (%.1f%% ECC)', len(bits), ecc_ratio * 100)
         modulate(fd, bits)
         data_size = fd.tell() - training_size
         log.info('%.3f seconds of data audio',