diff --git a/amodem/config.py b/amodem/config.py
index 1c3c66e..5d82cc9 100644
--- a/amodem/config.py
+++ b/amodem/config.py
@@ -11,7 +11,7 @@ class Configuration(object):
     # audio config
     bits_per_sample = 16
     sample_size = bits_per_sample // 8
-    samples_per_buffer = 4096
+    samples_per_buffer = 8192
 
     # sender config
     silence_start = 1.0