title: Analog sound trouble Raspberry Pi
body: <p>I try to play mp3 files with mpg321, mpg123 and omxplayer with hdmi works fine, but with the analog audio jack doesn't work
  I have installed alsa-tools and alsamixergui</p>
  
  <p>I set the audio jack output:</p>
  
  <pre><code>sudo modprobe snd_bcm2835
  sudo amixer cset numid=3 1
  </code></pre>
  
  <p>I test the speakers with </p>
  
  <pre><code>speaker-test -t sine -f 600
  </code></pre>
  
  <p>and works well, I can hear the sound, but when I try to play an mp3 file with :</p>
  
  <pre><code>omxplayer bubbling_water_1.mp3
  mpg321 bubbling_water_1.mp3
  </code></pre>
  
  <p>not hear any sound at all, the same mp3 file play ok with hdmi output</p>
  
  <pre><code>sudo amixer cset numid=3 0
  </code></pre>
  
  <p>or  </p>
  
  <pre><code>sudo amixer cset numid=3 2
  </code></pre>
  
  <p>but nothing happens on analog jack output
  any help ?</p>