From 00adbb1cb4259473f5d97b6a020e2ad1f3676e8c Mon Sep 17 00:00:00 2001
From: Lucas Schumacher <technolucas@protonmail.com>
Date: Wed, 15 Nov 2023 14:00:16 -0500
Subject: [PATCH] add some comments

---
 reverse_goertzel.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/reverse_goertzel.py b/reverse_goertzel.py
index 43f5def..929ba84 100644
--- a/reverse_goertzel.py
+++ b/reverse_goertzel.py
@@ -8,8 +8,8 @@ def goertzel_sinusoid(freq, duration, sample_rate, amplitude):
     coeff = 2.0 * math.cos(omega)
     
     # Initialize state variables
-    q1 = 1.0
-    q2 = 1.0
+    q1 = 1.0 # previous sample in sinusoid (1.0 for sample 1)
+    q2 = 1.0 # previous previous sample (approximately 1.0 for sample 1)
     result = []
     
     for i in range(n):