add some comments

2023-11-15 14:00:16 -05:00 · 2023-11-15 14:00:16 -05:00 · 00adbb1cb4
commit 00adbb1cb4
parent 1aca907e74
1 changed files with 2 additions and 2 deletions
--- 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):