title: raspberry pi / aplay / default sound card
body: <p>I purchased a the "Sound Blaster Play! 2" soundcard for my raspberry pi 3. The OS is raspbian jessie. </p>
  
  <p>The audio on my raspberry pi works when I run</p>
  
  <pre><code> $ aplay /usr/share/sounds/alsa/Front_Center.wav -D sysdefault:CARD=S2
  </code></pre>
  
  <p>But only when I use -D. When I use </p>
  
  <pre><code>$ aplay /usr/share/sounds/alsa/Front_Center.wav
  </code></pre>
  
  <p>it shows:</p>
  
  <pre><code>aplay: set_params:1239: Channels count non available
  </code></pre>
  
  <p>I need this for node-speaker.</p>
  
  <p>Here is the output of the ALSA Information script: <a href="http://www.alsa-project.org/db/?f=bdefa248fdedb34929d492e65ea941f2af40dcb2" rel="noreferrer">http://www.alsa-project.org/db/?f=bdefa248fdedb34929d492e65ea941f2af40dcb2</a></p>