Synthesizer

gto76 · gto76 · commit 8af40272ea87 · 2019-07-03T19:31:00.000+02:00
diff --git a/README.md b/README.md
@@ -2330,14 +2330,14 @@ from itertools import chain, repeat
 F  = 44100
 P1 = '71♪,69,,71♪,66,,62♪,66,,59♪,,,'
 P2 = '71♪,73,,74♪,73,,74,,71,,73♪,71,,73,,69,,71♪,69,,71,,67,,71♪,,,'
-get_pause = lambda seconds: repeat(0, int(seconds * F))
-sin_f     = lambda i, hz: math.sin(i * 2 * math.pi * hz / F)
-get_wave  = lambda hz, seconds: (sin_f(i, hz) for i in range(int(seconds * F)))
-get_hz    = lambda key: 8.176 * 2 ** (int(key) / 12)
-parse_n   = lambda note: (get_hz(note[:2]), 0.25 if '♪' in note else 0.125)
-get_note  = lambda note: get_wave(*parse_n(note)) if note else get_pause(0.125)
-frames_i  = chain.from_iterable(get_note(n) for n in f'{P1}{P1}{P2}'.split(','))
-frames_b  = b''.join(struct.pack('<h', int(a * 30000)) for a in frames_i)
+get_pause  = lambda seconds: repeat(0, int(seconds * F))
+sin_f      = lambda i, hz: math.sin(i * 2 * math.pi * hz / F)
+get_wave   = lambda hz, seconds: (sin_f(i, hz) for i in range(int(seconds * F)))
+get_hz     = lambda key: 8.176 * 2 ** (int(key) / 12)
+parse_n    = lambda note: (get_hz(note[:2]), 0.25 if '♪' in note else 0.125)
+get_frames = lambda note: get_wave(*parse_n(note)) if note else get_pause(0.125)
+frames_f   = chain.from_iterable(get_frames(n) for n in f'{P1}{P1}{P2}'.split(','))
+frames_b   = b''.join(struct.pack('<h', int(f * 30000)) for f in frames_f)
 simpleaudio.play_buffer(frames_b, 1, 2, F)
 ```
 
diff --git a/index.html b/index.html
@@ -1951,14 +1951,14 @@ <h3 id="synthesizer">Synthesizer</h3>
 F  = <span class="hljs-number">44100</span>
 P1 = <span class="hljs-string">'71♪,69,,71♪,66,,62♪,66,,59♪,,,'</span>
 P2 = <span class="hljs-string">'71♪,73,,74♪,73,,74,,71,,73♪,71,,73,,69,,71♪,69,,71,,67,,71♪,,,'</span>
-get_pause = <span class="hljs-keyword">lambda</span> seconds: repeat(<span class="hljs-number">0</span>, int(seconds * F))
-sin_f     = <span class="hljs-keyword">lambda</span> i, hz: math.sin(i * <span class="hljs-number">2</span> * math.pi * hz / F)
-get_wave  = <span class="hljs-keyword">lambda</span> hz, seconds: (sin_f(i, hz) <span class="hljs-keyword">for</span> i <span class="hljs-keyword">in</span> range(int(seconds * F)))
-get_hz    = <span class="hljs-keyword">lambda</span> key: <span class="hljs-number">8.176</span> * <span class="hljs-number">2</span> ** (int(key) / <span class="hljs-number">12</span>)
-parse_n   = <span class="hljs-keyword">lambda</span> note: (get_hz(note[:<span class="hljs-number">2</span>]), <span class="hljs-number">0.25</span> <span class="hljs-keyword">if</span> <span class="hljs-string">'♪'</span> <span class="hljs-keyword">in</span> note <span class="hljs-keyword">else</span> <span class="hljs-number">0.125</span>)
-get_note  = <span class="hljs-keyword">lambda</span> note: get_wave(*parse_n(note)) <span class="hljs-keyword">if</span> note <span class="hljs-keyword">else</span> get_pause(<span class="hljs-number">0.125</span>)
-frames_i  = chain.from_iterable(get_note(n) <span class="hljs-keyword">for</span> n <span class="hljs-keyword">in</span> <span class="hljs-string">f'<span class="hljs-subst">{P1}</span><span class="hljs-subst">{P1}</span><span class="hljs-subst">{P2}</span>'</span>.split(<span class="hljs-string">','</span>))
-frames_b  = <span class="hljs-string">b''</span>.join(struct.pack(<span class="hljs-string">'&lt;h'</span>, int(a * <span class="hljs-number">30000</span>)) <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> frames_i)
+get_pause  = <span class="hljs-keyword">lambda</span> seconds: repeat(<span class="hljs-number">0</span>, int(seconds * F))
+sin_f      = <span class="hljs-keyword">lambda</span> i, hz: math.sin(i * <span class="hljs-number">2</span> * math.pi * hz / F)
+get_wave   = <span class="hljs-keyword">lambda</span> hz, seconds: (sin_f(i, hz) <span class="hljs-keyword">for</span> i <span class="hljs-keyword">in</span> range(int(seconds * F)))
+get_hz     = <span class="hljs-keyword">lambda</span> key: <span class="hljs-number">8.176</span> * <span class="hljs-number">2</span> ** (int(key) / <span class="hljs-number">12</span>)
+parse_n    = <span class="hljs-keyword">lambda</span> note: (get_hz(note[:<span class="hljs-number">2</span>]), <span class="hljs-number">0.25</span> <span class="hljs-keyword">if</span> <span class="hljs-string">'♪'</span> <span class="hljs-keyword">in</span> note <span class="hljs-keyword">else</span> <span class="hljs-number">0.125</span>)
+get_frames = <span class="hljs-keyword">lambda</span> note: get_wave(*parse_n(note)) <span class="hljs-keyword">if</span> note <span class="hljs-keyword">else</span> get_pause(<span class="hljs-number">0.125</span>)
+frames_f   = chain.from_iterable(get_frames(n) <span class="hljs-keyword">for</span> n <span class="hljs-keyword">in</span> <span class="hljs-string">f'<span class="hljs-subst">{P1}</span><span class="hljs-subst">{P1}</span><span class="hljs-subst">{P2}</span>'</span>.split(<span class="hljs-string">','</span>))
+frames_b   = <span class="hljs-string">b''</span>.join(struct.pack(<span class="hljs-string">'&lt;h'</span>, int(f * <span class="hljs-number">30000</span>)) <span class="hljs-keyword">for</span> f <span class="hljs-keyword">in</span> frames_f)
 simpleaudio.play_buffer(frames_b, <span class="hljs-number">1</span>, <span class="hljs-number">2</span>, F)
 </code></pre>
 <h2 id="basicscripttemplate"><a href="#basicscripttemplate" name="basicscripttemplate">#</a>Basic Script Template</h2>
