title: Uncompilable source code - Erroneous sym type: java.io.File.getSampleV
body: <pre><code>import java.io.File;
  
  import java.io.FileInputStream;
  
  //import javax.swing.JFrame;
  public class filterpanitha {
  //public void graph(){
  
  //}
  /**
   * @param args
   */
  public static void main(String[] args) {
      // First, get the data from a sound file in .wav format into your program
      // You will have to modify the following line to point to your own file
      // String fileName = "C:\\Huhns\\Teaching\\CSCE145\\Code\\Noise3\\preamble.wav";
      FileInputStream fileInputStream = null;
      File file = new File("C:\\Users\\sudharshan_03713\\Desktop\\audio\\1A5.wav");
      // Next, print the sound to find out its length in samples
      System.out.println(file);
      // The following two methods calls get the value of a sound sample at
      // index 1000 and then set its value to half of the original.
      int index = 1000;
      int value = file.getSampleValueAt(index);
      file.setSampleValueAt(index, value / 2);
      // The following loop sets every sound sample to be twice its original value
      for (int n = 0; n &lt; file.getNumSamples(); n++) {
          value = file.getSampleValueAt(n);
          file.setSampleValueAt(n, value * 2);
      }
  
      // Listen to the sound
      //sound1.play();
  }
  }
  </code></pre>
  
  <p>please help when i run its says </p>
  
  <pre><code>Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: java.io.File.getSampleValueAt
   at Prepro.filterpanitha.main(filterpanitha.java:41)   
  </code></pre>
  
  <p>i have no idea why its pooping up ...is ther any audio format i need to look in to if so how ...please help</p>