Windows Phone application crashes when pausing the current song -


my goal pausing playing song when amplitude of microphone exceeds value.
apps exit when amplitude increase value.
why that?
how fix this?

[what did played song in music,
opened app , press button , acted sound exceed value.
app exit suddenly]

using system; using system.collections.generic; using system.linq; using system.net; using system.windows; using system.windows.controls; using system.windows.navigation; using microsoft.phone.controls; using microsoft.phone.shell; using u.resources; using microsoft.xna.framework.audio; using system.windows.threading; using microsoft.xna.framework; using microsoft.xna.framework.media;  namespace u {     public partial class mainpage : phoneapplicationpage     {     //global variables     microphone microphone = microphone.default;     byte[] buffer;      // constructor     public mainpage()     {         initializecomponent();         // timer simulate xna game studio game loop (microphone xna game studio)         dispatchertimer dt = new dispatchertimer();         dt.interval = timespan.frommilliseconds(33);         dt.tick += delegate { try { frameworkdispatcher.update(); } catch { } };         dt.start();          microphone.bufferready += new eventhandler<eventargs>(microphone_bufferready);      }      private void buttonstart_click(object sender, routedeventargs e)     {         microphone.bufferduration = timespan.frommilliseconds(100);         buffer = new byte[microphone.getsamplesizeinbytes(microphone.bufferduration)];         microphone.start();     }      void microphone_bufferready(object sender, eventargs e)     {         microphone.getdata(buffer);         (int = 0; < buffer.length; += 2)         {             //the value of sample amplitude of signal             short sample = bitconverter.toint16(new byte[2] { buffer[i], buffer[i + 1] }, 0);             //getting absolut value             if (sample < 0) sample *= (-1);              //showing output              if(sample>1000) pause_music();         }      }      void pause_music()      {         if (mediaplayer.state == mediastate.playing)         {             frameworkdispatcher.update();             mediaplayer.pause();         }     }     }

}

it crashing because it's going stackoverflow!

you should not call frameworkdispatcher.update() within pause_music() method! result in call microphone_bufferready , pause_music etc etc , stack overflow served.

just remove line , remember call microphone.stop() , work :)


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