From 67da70c9dfae6d2e606055670663799f72ee621e Mon Sep 17 00:00:00 2001
From: Roman Zeyde <roman.zeyde@gmail.com>
Date: Sat, 9 Aug 2014 14:54:21 +0300
Subject: [PATCH] rename error variable for resampling

---
 amodem/recv.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/amodem/recv.py b/amodem/recv.py
index 0f1e799..2eaf6f7 100644
--- a/amodem/recv.py
+++ b/amodem/recv.py
@@ -192,8 +192,8 @@ def demodulate(symbols, filters, freqs, sampler):
             yield bits
 
         if i and i % config.baud == 0:
-            mean_err = np.array([e for v in errors.values() for e in v])
-            correction = np.mean(np.angle(mean_err)) / (2*np.pi)
+            err = np.array([e for v in errors.values() for e in v])
+            correction = np.mean(np.angle(err)) / (2*np.pi) if len(err) else 0.0
             duration = time.time() - stats['rx_start']
             log.debug('%10.1f kB, realtime: %6.2f%%, sampling error: %+.3f%%',
                       stats['rx_bits'] / 8e3,