From d2c3ec847edd32ab9d25aa9298e6a76034793d73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jure=20=C5=A0orn?= <sornjure@gmail.com>
Date: Tue, 1 Oct 2019 11:59:45 +0200
Subject: [PATCH] Audio

---
 README.md  | 10 +++++-----
 index.html | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index 42bd172..d9afeba 100644
--- a/README.md
+++ b/README.md
@@ -2738,10 +2738,10 @@ def read_wav_file(filename):
         an_int = int.from_bytes(a_bytes, 'little', signed=width!=1)
         return an_int - 128 * (width == 1)
     with wave.open(filename, 'rb') as file:
-        frames = file.readframes(file.getnframes())
         width  = file.getsampwidth()
-    samples = (frames[i: i + width] for i in range(0, len(frames), width))
-    return [get_int(a) / pow(2, width * 8 - 1) for a in samples]
+        frames = file.readframes(file.getnframes())
+    byte_samples = (frames[i: i + width] for i in range(0, len(frames), width))
+    return [get_int(b) / pow(2, width * 8 - 1) for b in byte_samples]
 ```
 
 ### Write Float Samples to WAV File
@@ -2756,7 +2756,7 @@ def write_to_wav_file(filename, float_samples, nchannels=1, sampwidth=2, framera
         file.setnchannels(nchannels)
         file.setsampwidth(sampwidth)
         file.setframerate(framerate)
-        file.writeframes(b''.join(get_bytes(a) for a in float_samples))
+        file.writeframes(b''.join(get_bytes(f) for f in float_samples))
 ```
 
 ### Examples
@@ -2771,7 +2771,7 @@ write_to_wav_file('test.wav', frames_f)
 ```python
 from random import random
 add_noise = lambda value: value + (random() - 0.5) * 0.03
-frames_f  = (add_noise(a) for a in read_wav_file('test.wav'))
+frames_f  = (add_noise(f) for f in read_wav_file('test.wav'))
 write_to_wav_file('test.wav', frames_f)
 ```
 
diff --git a/index.html b/index.html
index 606e554..ca70bb5 100644
--- a/index.html
+++ b/index.html
@@ -2331,10 +2331,10 @@ nframes      = &lt;Wave_read&gt;.getnframes()         <span class="hljs-comment"
         an_int = int.from_bytes(a_bytes, <span class="hljs-string">'little'</span>, signed=width!=<span class="hljs-number">1</span>)
         <span class="hljs-keyword">return</span> an_int - <span class="hljs-number">128</span> * (width == <span class="hljs-number">1</span>)
     <span class="hljs-keyword">with</span> wave.open(filename, <span class="hljs-string">'rb'</span>) <span class="hljs-keyword">as</span> file:
-        frames = file.readframes(file.getnframes())
         width  = file.getsampwidth()
-    samples = (frames[i: i + width] <span class="hljs-keyword">for</span> i <span class="hljs-keyword">in</span> range(<span class="hljs-number">0</span>, len(frames), width))
-    <span class="hljs-keyword">return</span> [get_int(a) / pow(<span class="hljs-number">2</span>, width * <span class="hljs-number">8</span> - <span class="hljs-number">1</span>) <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> samples]
+        frames = file.readframes(file.getnframes())
+    byte_samples = (frames[i: i + width] <span class="hljs-keyword">for</span> i <span class="hljs-keyword">in</span> range(<span class="hljs-number">0</span>, len(frames), width))
+    <span class="hljs-keyword">return</span> [get_int(b) / pow(<span class="hljs-number">2</span>, width * <span class="hljs-number">8</span> - <span class="hljs-number">1</span>) <span class="hljs-keyword">for</span> b <span class="hljs-keyword">in</span> byte_samples]
 </code></pre></div>
 
 <div><h3 id="writefloatsamplestowavfile">Write Float Samples to WAV File</h3><pre><code class="python language-python hljs"><span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">write_to_wav_file</span><span class="hljs-params">(filename, float_samples, nchannels=<span class="hljs-number">1</span>, sampwidth=<span class="hljs-number">2</span>, framerate=<span class="hljs-number">44100</span>)</span>:</span>
@@ -2347,7 +2347,7 @@ nframes      = &lt;Wave_read&gt;.getnframes()         <span class="hljs-comment"
         file.setnchannels(nchannels)
         file.setsampwidth(sampwidth)
         file.setframerate(framerate)
-        file.writeframes(<span class="hljs-string">b''</span>.join(get_bytes(a) <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> float_samples))
+        file.writeframes(<span class="hljs-string">b''</span>.join(get_bytes(f) <span class="hljs-keyword">for</span> f <span class="hljs-keyword">in</span> float_samples))
 </code></pre></div>
 
 <div><h3 id="examples-1">Examples</h3><div><h4 id="savesasinewavetoamonowavfile">Saves a sine wave to a mono WAV file:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> math <span class="hljs-keyword">import</span> pi, sin
@@ -2358,7 +2358,7 @@ write_to_wav_file(<span class="hljs-string">'test.wav'</span>, frames_f)
 
 <div><h4 id="addsnoisetoamonowavfile">Adds noise to a mono WAV file:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> random <span class="hljs-keyword">import</span> random
 add_noise = <span class="hljs-keyword">lambda</span> value: value + (random() - <span class="hljs-number">0.5</span>) * <span class="hljs-number">0.03</span>
-frames_f  = (add_noise(a) <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> read_wav_file(<span class="hljs-string">'test.wav'</span>))
+frames_f  = (add_noise(f) <span class="hljs-keyword">for</span> f <span class="hljs-keyword">in</span> read_wav_file(<span class="hljs-string">'test.wav'</span>))
 write_to_wav_file(<span class="hljs-string">'test.wav'</span>, frames_f)
 </code></pre></div>