From f9d6cfd0d0a48b8329979e782bb803dabe4f9358 Mon Sep 17 00:00:00 2001
From: Joris van Rantwijk <joris@jorisvr.nl>
Date: Sun, 5 Jan 2014 22:02:08 +0100
Subject: [PATCH] Add comments to Python code.

---
 pyfm.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyfm.py b/pyfm.py
index 5ddc3be..4de7e13 100644
--- a/pyfm.py
+++ b/pyfm.py
@@ -120,6 +120,7 @@ def spectrum(d, fs=1, nfft=None, sortfreq=False):
 
 
 def pll(d, centerfreq, bandwidth):
+    """Simulate the stereo pilot PLL."""
 
     minfreq = (centerfreq - bandwidth) * 2 * numpy.pi
     maxfreq = (centerfreq + bandwidth) * 2 * numpy.pi