From 9430ac1f252f9cbb30a2cabf991e6d07f7a80b35 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ture=20P=C3=A5lsson?= <ture@turepalsson.se>
Date: Tue, 17 Dec 2019 20:27:48 +0100
Subject: [PATCH] Tidy up a bit

---
 audio.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/audio.py b/audio.py
index 0f4450e..3cb0596 100644
--- a/audio.py
+++ b/audio.py
@@ -23,8 +23,8 @@ def triangle(x):
 def xsin(x):
     return math.sin(2 * math.pi * x)
 
-def A(t):
-    return 16384 * math.exp(-3 * t)
+def A(t, level = 16384, decay_rate = 3):
+    return level * math.exp(-decay_rate * t)
 
 def make_frames(k0, n):
     f = 440
@@ -45,7 +45,6 @@ def callback(in_data, frame_count, time_info, status):
     current_frame += frame_count
     return (data, pyaudio.paContinue)
 
-# open stream using callback (3)
 stream = p.open(format = pyaudio.paInt16,
                 channels = 1,
                 rate = frame_rate,
-- 
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